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Finding the Fourth Proportional to 310,252.32, 428,150.88 and 174,288.96

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Solution

The fourth proportional to 310,252.32, 428,150.88 and 174,288.96 is: 240,520.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,252.32 : 428,150.88 = 174,288.96 : x
  2. Step 2: Convert to fraction form
    310,252.32/428,150.88 = 174,288.96/x
  3. Step 3: Cross multiply
    310,252.32x = 428,150.88 × 174,288.96
  4. Step 4: Simplify right side
    310,252.32x = 74,621,971,598.28
  5. Step 5: Solve for x
    x = 74,621,971,598.28/310,252.32
  6. Step 6: Final answer
    x = 240,520.27

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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.