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Finding the Fourth Proportional to 352,709.22, 486,407.17 and 272,008.92

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Solution

The fourth proportional to 352,709.22, 486,407.17 and 272,008.92 is: 375,116.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,709.22 : 486,407.17 = 272,008.92 : x
  2. Step 2: Convert to fraction form
    352,709.22/486,407.17 = 272,008.92/x
  3. Step 3: Cross multiply
    352,709.22x = 486,407.17 × 272,008.92
  4. Step 4: Simplify right side
    352,709.22x = 132,307,085,879.90
  5. Step 5: Solve for x
    x = 132,307,085,879.90/352,709.22
  6. Step 6: Final answer
    x = 375,116.61

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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.