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Finding the Fourth Proportional to 435,760.54, 653,641.32 and 136,242.70

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Solution

The fourth proportional to 435,760.54, 653,641.32 and 136,242.70 is: 204,364.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,760.54 : 653,641.32 = 136,242.70 : x
  2. Step 2: Convert to fraction form
    435,760.54/653,641.32 = 136,242.70/x
  3. Step 3: Cross multiply
    435,760.54x = 653,641.32 × 136,242.70
  4. Step 4: Simplify right side
    435,760.54x = 89,053,858,268.36
  5. Step 5: Solve for x
    x = 89,053,858,268.36/435,760.54
  6. Step 6: Final answer
    x = 204,364.21

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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.