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Finding the Fourth Proportional to 612,517.96, 918,704.04 and 163,272.52

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Solution

The fourth proportional to 612,517.96, 918,704.04 and 163,272.52 is: 244,889.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,517.96 : 918,704.04 = 163,272.52 : x
  2. Step 2: Convert to fraction form
    612,517.96/918,704.04 = 163,272.52/x
  3. Step 3: Cross multiply
    612,517.96x = 918,704.04 × 163,272.52
  4. Step 4: Simplify right side
    612,517.96x = 149,999,123,744.98
  5. Step 5: Solve for x
    x = 149,999,123,744.98/612,517.96
  6. Step 6: Final answer
    x = 244,889.35

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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.