Home / 359,780.43-539,572.13-135,123.49

Finding the Fourth Proportional to 359,780.43, 539,572.13 and 135,123.49

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Solution

The fourth proportional to 359,780.43, 539,572.13 and 135,123.49 is: 202,648.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,780.43 : 539,572.13 = 135,123.49 : x
  2. Step 2: Convert to fraction form
    359,780.43/539,572.13 = 135,123.49/x
  3. Step 3: Cross multiply
    359,780.43x = 539,572.13 × 135,123.49
  4. Step 4: Simplify right side
    359,780.43x = 72,908,869,312.33
  5. Step 5: Solve for x
    x = 72,908,869,312.33/359,780.43
  6. Step 6: Final answer
    x = 202,648.24

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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.