Home / 283,428.42-391,131.23-156,104.02

Finding the Fourth Proportional to 283,428.42, 391,131.23 and 156,104.02

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Solution

The fourth proportional to 283,428.42, 391,131.23 and 156,104.02 is: 215,423.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,428.42 : 391,131.23 = 156,104.02 : x
  2. Step 2: Convert to fraction form
    283,428.42/391,131.23 = 156,104.02/x
  3. Step 3: Cross multiply
    283,428.42x = 391,131.23 × 156,104.02
  4. Step 4: Simplify right side
    283,428.42x = 61,057,157,350.54
  5. Step 5: Solve for x
    x = 61,057,157,350.54/283,428.42
  6. Step 6: Final answer
    x = 215,423.55

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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.