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Finding the Fourth Proportional to 543,667.68, 815,523.12 and 169,690.68

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Solution

The fourth proportional to 543,667.68, 815,523.12 and 169,690.68 is: 254,542.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,667.68 : 815,523.12 = 169,690.68 : x
  2. Step 2: Convert to fraction form
    543,667.68/815,523.12 = 169,690.68/x
  3. Step 3: Cross multiply
    543,667.68x = 815,523.12 × 169,690.68
  4. Step 4: Simplify right side
    543,667.68x = 138,386,672,788.52
  5. Step 5: Solve for x
    x = 138,386,672,788.52/543,667.68
  6. Step 6: Final answer
    x = 254,542.76

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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.