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Finding the Fourth Proportional to 493,344.45, 680,815.33 and 266,989.95

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Solution

The fourth proportional to 493,344.45, 680,815.33 and 266,989.95 is: 368,446.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,344.45 : 680,815.33 = 266,989.95 : x
  2. Step 2: Convert to fraction form
    493,344.45/680,815.33 = 266,989.95/x
  3. Step 3: Cross multiply
    493,344.45x = 680,815.33 × 266,989.95
  4. Step 4: Simplify right side
    493,344.45x = 181,770,847,695.40
  5. Step 5: Solve for x
    x = 181,770,847,695.40/493,344.45
  6. Step 6: Final answer
    x = 368,446.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.