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Finding the Fourth Proportional to 283,359, 391,035.42 and 156,034.29

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Solution

The fourth proportional to 283,359, 391,035.42 and 156,034.29 is: 215,327.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,359 : 391,035.42 = 156,034.29 : x
  2. Step 2: Convert to fraction form
    283,359/391,035.42 = 156,034.29/x
  3. Step 3: Cross multiply
    283,359x = 391,035.42 × 156,034.29
  4. Step 4: Simplify right side
    283,359x = 61,014,934,124.55
  5. Step 5: Solve for x
    x = 61,014,934,124.55/283,359
  6. Step 6: Final answer
    x = 215,327.32

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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.