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Finding the Fourth Proportional to 508,261.84, 701,485.32 and 281,980.24

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Solution

The fourth proportional to 508,261.84, 701,485.32 and 281,980.24 is: 389,179.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,261.84 : 701,485.32 = 281,980.24 : x
  2. Step 2: Convert to fraction form
    508,261.84/701,485.32 = 281,980.24/x
  3. Step 3: Cross multiply
    508,261.84x = 701,485.32 × 281,980.24
  4. Step 4: Simplify right side
    508,261.84x = 197,804,998,890.08
  5. Step 5: Solve for x
    x = 197,804,998,890.08/508,261.84
  6. Step 6: Final answer
    x = 389,179.32

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.