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Finding the Fourth Proportional to 282,575.60, 423,863.60 and 72,213.76

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Solution

The fourth proportional to 282,575.60, 423,863.60 and 72,213.76 is: 108,320.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,575.60 : 423,863.60 = 72,213.76 : x
  2. Step 2: Convert to fraction form
    282,575.60/423,863.60 = 72,213.76/x
  3. Step 3: Cross multiply
    282,575.60x = 423,863.60 × 72,213.76
  4. Step 4: Simplify right side
    282,575.60x = 30,608,784,283.14
  5. Step 5: Solve for x
    x = 30,608,784,283.14/282,575.60
  6. Step 6: Final answer
    x = 108,320.69

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1.5x scale

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.