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Finding the Fourth Proportional to 536,644.72, 804,994.66 and 137,288.96

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Solution

The fourth proportional to 536,644.72, 804,994.66 and 137,288.96 is: 205,940.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,644.72 : 804,994.66 = 137,288.96 : x
  2. Step 2: Convert to fraction form
    536,644.72/804,994.66 = 137,288.96/x
  3. Step 3: Cross multiply
    536,644.72x = 804,994.66 × 137,288.96
  4. Step 4: Simplify right side
    536,644.72x = 110,516,878,990.51
  5. Step 5: Solve for x
    x = 110,516,878,990.51/536,644.72
  6. Step 6: Final answer
    x = 205,940.49

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.