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Finding the Fourth Proportional to 317,475.28, 438,115.53 and 174,235.69

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Solution

The fourth proportional to 317,475.28, 438,115.53 and 174,235.69 is: 240,445.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,475.28 : 438,115.53 = 174,235.69 : x
  2. Step 2: Convert to fraction form
    317,475.28/438,115.53 = 174,235.69/x
  3. Step 3: Cross multiply
    317,475.28x = 438,115.53 × 174,235.69
  4. Step 4: Simplify right side
    317,475.28x = 76,335,361,669.27
  5. Step 5: Solve for x
    x = 76,335,361,669.27/317,475.28
  6. Step 6: Final answer
    x = 240,445.06

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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.