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Finding the Fourth Proportional to 280,333.80, 420,567.66 and 93,346.92

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Solution

The fourth proportional to 280,333.80, 420,567.66 and 93,346.92 is: 140,042.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,333.80 : 420,567.66 = 93,346.92 : x
  2. Step 2: Convert to fraction form
    280,333.80/420,567.66 = 93,346.92/x
  3. Step 3: Cross multiply
    280,333.80x = 420,567.66 × 93,346.92
  4. Step 4: Simplify right side
    280,333.80x = 39,258,695,712.61
  5. Step 5: Solve for x
    x = 39,258,695,712.61/280,333.80
  6. Step 6: Final answer
    x = 140,042.68

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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.