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Finding the Fourth Proportional to 242,600.10, 363,900.15 and 136,311.90

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Solution

The fourth proportional to 242,600.10, 363,900.15 and 136,311.90 is: 204,467.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,600.10 : 363,900.15 = 136,311.90 : x
  2. Step 2: Convert to fraction form
    242,600.10/363,900.15 = 136,311.90/x
  3. Step 3: Cross multiply
    242,600.10x = 363,900.15 × 136,311.90
  4. Step 4: Simplify right side
    242,600.10x = 49,603,920,856.79
  5. Step 5: Solve for x
    x = 49,603,920,856.79/242,600.10
  6. Step 6: Final answer
    x = 204,467.85

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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.