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Finding the Fourth Proportional to 242,520.10, 363,780.15 and 204,028.90

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Solution

The fourth proportional to 242,520.10, 363,780.15 and 204,028.90 is: 306,043.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,520.10 : 363,780.15 = 204,028.90 : x
  2. Step 2: Convert to fraction form
    242,520.10/363,780.15 = 204,028.90/x
  3. Step 3: Cross multiply
    242,520.10x = 363,780.15 × 204,028.90
  4. Step 4: Simplify right side
    242,520.10x = 74,221,663,846.34
  5. Step 5: Solve for x
    x = 74,221,663,846.34/242,520.10
  6. Step 6: Final answer
    x = 306,043.35

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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.