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Finding the Fourth Proportional to 363,252.80, 543,842.40 and 321,780.80

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Solution

The fourth proportional to 363,252.80, 543,842.40 and 321,780.80 is: 481,752.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,252.80 : 543,842.40 = 321,780.80 : x
  2. Step 2: Convert to fraction form
    363,252.80/543,842.40 = 321,780.80/x
  3. Step 3: Cross multiply
    363,252.80x = 543,842.40 × 321,780.80
  4. Step 4: Simplify right side
    363,252.80x = 174,998,042,545.92
  5. Step 5: Solve for x
    x = 174,998,042,545.92/363,252.80
  6. Step 6: Final answer
    x = 481,752.77

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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.