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Finding the Fourth Proportional to 363,449.60, 545,757.60 and 245,643.20

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Solution

The fourth proportional to 363,449.60, 545,757.60 and 245,643.20 is: 368,858.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,449.60 : 545,757.60 = 245,643.20 : x
  2. Step 2: Convert to fraction form
    363,449.60/545,757.60 = 245,643.20/x
  3. Step 3: Cross multiply
    363,449.60x = 545,757.60 × 245,643.20
  4. Step 4: Simplify right side
    363,449.60x = 134,061,643,288.32
  5. Step 5: Solve for x
    x = 134,061,643,288.32/363,449.60
  6. Step 6: Final answer
    x = 368,858.97

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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.