Home / 283,387.26-391,072.50-156,061.92

Finding the Fourth Proportional to 283,387.26, 391,072.50 and 156,061.92

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Solution

The fourth proportional to 283,387.26, 391,072.50 and 156,061.92 is: 215,364.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,387.26 : 391,072.50 = 156,061.92 : x
  2. Step 2: Convert to fraction form
    283,387.26/391,072.50 = 156,061.92/x
  3. Step 3: Cross multiply
    283,387.26x = 391,072.50 × 156,061.92
  4. Step 4: Simplify right side
    283,387.26x = 61,031,525,209.20
  5. Step 5: Solve for x
    x = 61,031,525,209.20/283,387.26
  6. Step 6: Final answer
    x = 215,364.39

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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.