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Finding the Fourth Proportional to 317,761.60, 438,513.60 and 174,523.36

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Solution

The fourth proportional to 317,761.60, 438,513.60 and 174,523.36 is: 240,843.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,761.60 : 438,513.60 = 174,523.36 : x
  2. Step 2: Convert to fraction form
    317,761.60/438,513.60 = 174,523.36/x
  3. Step 3: Cross multiply
    317,761.60x = 438,513.60 × 174,523.36
  4. Step 4: Simplify right side
    317,761.60x = 76,530,866,877.70
  5. Step 5: Solve for x
    x = 76,530,866,877.70/317,761.60
  6. Step 6: Final answer
    x = 240,843.66

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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.