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Finding the Fourth Proportional to 363,474.90, 545,212.35 and 163,561.73

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Solution

The fourth proportional to 363,474.90, 545,212.35 and 163,561.73 is: 245,342.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,474.90 : 545,212.35 = 163,561.73 : x
  2. Step 2: Convert to fraction form
    363,474.90/545,212.35 = 163,561.73/x
  3. Step 3: Cross multiply
    363,474.90x = 545,212.35 × 163,561.73
  4. Step 4: Simplify right side
    363,474.90x = 89,175,876,546.40
  5. Step 5: Solve for x
    x = 89,175,876,546.40/363,474.90
  6. Step 6: Final answer
    x = 245,342.60

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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.