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Finding the Fourth Proportional to 280,540.96, 420,814.80 and 93,552.40

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Solution

The fourth proportional to 280,540.96, 420,814.80 and 93,552.40 is: 140,329.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,540.96 : 420,814.80 = 93,552.40 : x
  2. Step 2: Convert to fraction form
    280,540.96/420,814.80 = 93,552.40/x
  3. Step 3: Cross multiply
    280,540.96x = 420,814.80 × 93,552.40
  4. Step 4: Simplify right side
    280,540.96x = 39,368,234,495.52
  5. Step 5: Solve for x
    x = 39,368,234,495.52/280,540.96
  6. Step 6: Final answer
    x = 140,329.72

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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.