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Finding the Fourth Proportional to 280,511.48, 420,770.92 and 93,523.04

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Solution

The fourth proportional to 280,511.48, 420,770.92 and 93,523.04 is: 140,285.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,511.48 : 420,770.92 = 93,523.04 : x
  2. Step 2: Convert to fraction form
    280,511.48/420,770.92 = 93,523.04/x
  3. Step 3: Cross multiply
    280,511.48x = 420,770.92 × 93,523.04
  4. Step 4: Simplify right side
    280,511.48x = 39,351,775,582.00
  5. Step 5: Solve for x
    x = 39,351,775,582.00/280,511.48
  6. Step 6: Final answer
    x = 140,285.79

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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.