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Finding the Fourth Proportional to 363,800.12, 545,567.13 and 139,049.42

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Solution

The fourth proportional to 363,800.12, 545,567.13 and 139,049.42 is: 208,523.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,800.12 : 545,567.13 = 139,049.42 : x
  2. Step 2: Convert to fraction form
    363,800.12/545,567.13 = 139,049.42/x
  3. Step 3: Cross multiply
    363,800.12x = 545,567.13 × 139,049.42
  4. Step 4: Simplify right side
    363,800.12x = 75,860,790,269.73
  5. Step 5: Solve for x
    x = 75,860,790,269.73/363,800.12
  6. Step 6: Final answer
    x = 208,523.27

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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.