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Finding the Fourth Proportional to 352,708.97, 486,406.82 and 272,008.67

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Solution

The fourth proportional to 352,708.97, 486,406.82 and 272,008.67 is: 375,116.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,708.97 : 486,406.82 = 272,008.67 : x
  2. Step 2: Convert to fraction form
    352,708.97/486,406.82 = 272,008.67/x
  3. Step 3: Cross multiply
    352,708.97x = 486,406.82 × 272,008.67
  4. Step 4: Simplify right side
    352,708.97x = 132,306,870,435.12
  5. Step 5: Solve for x
    x = 132,306,870,435.12/352,708.97
  6. Step 6: Final answer
    x = 375,116.27

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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.