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Finding the Fourth Proportional to 363,425.60, 545,721.60 and 245,619.20

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Solution

The fourth proportional to 363,425.60, 545,721.60 and 245,619.20 is: 368,822.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,425.60 : 545,721.60 = 245,619.20 : x
  2. Step 2: Convert to fraction form
    363,425.60/545,721.60 = 245,619.20/x
  3. Step 3: Cross multiply
    363,425.60x = 545,721.60 × 245,619.20
  4. Step 4: Simplify right side
    363,425.60x = 134,039,702,814.72
  5. Step 5: Solve for x
    x = 134,039,702,814.72/363,425.60
  6. Step 6: Final answer
    x = 368,822.95

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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.