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Finding the Fourth Proportional to 543,672.68, 815,530.62 and 169,695.68

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Solution

The fourth proportional to 543,672.68, 815,530.62 and 169,695.68 is: 254,550.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,672.68 : 815,530.62 = 169,695.68 : x
  2. Step 2: Convert to fraction form
    543,672.68/815,530.62 = 169,695.68/x
  3. Step 3: Cross multiply
    543,672.68x = 815,530.62 × 169,695.68
  4. Step 4: Simplify right side
    543,672.68x = 138,392,023,121.72
  5. Step 5: Solve for x
    x = 138,392,023,121.72/543,672.68
  6. Step 6: Final answer
    x = 254,550.26

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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.