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Finding the Fourth Proportional to 242,594.40, 363,891.60 and 220,821.60

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Solution

The fourth proportional to 242,594.40, 363,891.60 and 220,821.60 is: 331,232.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,594.40 : 363,891.60 = 220,821.60 : x
  2. Step 2: Convert to fraction form
    242,594.40/363,891.60 = 220,821.60/x
  3. Step 3: Cross multiply
    242,594.40x = 363,891.60 × 220,821.60
  4. Step 4: Simplify right side
    242,594.40x = 80,355,125,338.56
  5. Step 5: Solve for x
    x = 80,355,125,338.56/242,594.40
  6. Step 6: Final answer
    x = 331,232.40

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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.