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Finding the Fourth Proportional to 242,744.40, 363,922.20 and 102,387.60

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Solution

The fourth proportional to 242,744.40, 363,922.20 and 102,387.60 is: 153,499.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,744.40 : 363,922.20 = 102,387.60 : x
  2. Step 2: Convert to fraction form
    242,744.40/363,922.20 = 102,387.60/x
  3. Step 3: Cross multiply
    242,744.40x = 363,922.20 × 102,387.60
  4. Step 4: Simplify right side
    242,744.40x = 37,261,120,644.72
  5. Step 5: Solve for x
    x = 37,261,120,644.72/242,744.40
  6. Step 6: Final answer
    x = 153,499.40

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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.