Home / 435,411.13-653,123.61-165,543.38

Finding the Fourth Proportional to 435,411.13, 653,123.61 and 165,543.38

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Solution

The fourth proportional to 435,411.13, 653,123.61 and 165,543.38 is: 248,317.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,411.13 : 653,123.61 = 165,543.38 : x
  2. Step 2: Convert to fraction form
    435,411.13/653,123.61 = 165,543.38/x
  3. Step 3: Cross multiply
    435,411.13x = 653,123.61 × 165,543.38
  4. Step 4: Simplify right side
    435,411.13x = 108,120,289,957.20
  5. Step 5: Solve for x
    x = 108,120,289,957.20/435,411.13
  6. Step 6: Final answer
    x = 248,317.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.