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Finding the Fourth Proportional to 283,477.59, 391,200.12 and 156,152.88

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Solution

The fourth proportional to 283,477.59, 391,200.12 and 156,152.88 is: 215,491.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,477.59 : 391,200.12 = 156,152.88 : x
  2. Step 2: Convert to fraction form
    283,477.59/391,200.12 = 156,152.88/x
  3. Step 3: Cross multiply
    283,477.59x = 391,200.12 × 156,152.88
  4. Step 4: Simplify right side
    283,477.59x = 61,087,025,394.35
  5. Step 5: Solve for x
    x = 61,087,025,394.35/283,477.59
  6. Step 6: Final answer
    x = 215,491.55

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1.5x scale

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.