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Finding the Fourth Proportional to 352,717.72, 486,890.02 and 245,350.04

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Solution

The fourth proportional to 352,717.72, 486,890.02 and 245,350.04 is: 338,680.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,717.72 : 486,890.02 = 245,350.04 : x
  2. Step 2: Convert to fraction form
    352,717.72/486,890.02 = 245,350.04/x
  3. Step 3: Cross multiply
    352,717.72x = 486,890.02 × 245,350.04
  4. Step 4: Simplify right side
    352,717.72x = 119,458,485,882.60
  5. Step 5: Solve for x
    x = 119,458,485,882.60/352,717.72
  6. Step 6: Final answer
    x = 338,680.14

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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.