Home / 317,538.43-438,188.07-172,340.92

Finding the Fourth Proportional to 317,538.43, 438,188.07 and 172,340.92

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Solution

The fourth proportional to 317,538.43, 438,188.07 and 172,340.92 is: 237,822.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,538.43 : 438,188.07 = 172,340.92 : x
  2. Step 2: Convert to fraction form
    317,538.43/438,188.07 = 172,340.92/x
  3. Step 3: Cross multiply
    317,538.43x = 438,188.07 × 172,340.92
  4. Step 4: Simplify right side
    317,538.43x = 75,517,735,116.82
  5. Step 5: Solve for x
    x = 75,517,735,116.82/317,538.43
  6. Step 6: Final answer
    x = 237,822.35

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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.