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Finding the Fourth Proportional to 363,764.80, 545,647.20 and 304,715.80

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Solution

The fourth proportional to 363,764.80, 545,647.20 and 304,715.80 is: 457,073.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,764.80 : 545,647.20 = 304,715.80 : x
  2. Step 2: Convert to fraction form
    363,764.80/545,647.20 = 304,715.80/x
  3. Step 3: Cross multiply
    363,764.80x = 545,647.20 × 304,715.80
  4. Step 4: Simplify right side
    363,764.80x = 166,267,323,065.76
  5. Step 5: Solve for x
    x = 166,267,323,065.76/363,764.80
  6. Step 6: Final answer
    x = 457,073.70

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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.