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Finding the Fourth Proportional to 280,588.60, 420,884.52 and 93,599.56

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Solution

The fourth proportional to 280,588.60, 420,884.52 and 93,599.56 is: 140,399.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,588.60 : 420,884.52 = 93,599.56 : x
  2. Step 2: Convert to fraction form
    280,588.60/420,884.52 = 93,599.56/x
  3. Step 3: Cross multiply
    280,588.60x = 420,884.52 × 93,599.56
  4. Step 4: Simplify right side
    280,588.60x = 39,394,605,882.81
  5. Step 5: Solve for x
    x = 39,394,605,882.81/280,588.60
  6. Step 6: Final answer
    x = 140,399.88

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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.