Home / 218,932.31-328,412.34-92,549

Finding the Fourth Proportional to 218,932.31, 328,412.34 and 92,549

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Solution

The fourth proportional to 218,932.31, 328,412.34 and 92,549 is: 138,829.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,932.31 : 328,412.34 = 92,549 : x
  2. Step 2: Convert to fraction form
    218,932.31/328,412.34 = 92,549/x
  3. Step 3: Cross multiply
    218,932.31x = 328,412.34 × 92,549
  4. Step 4: Simplify right side
    218,932.31x = 30,394,233,191.92
  5. Step 5: Solve for x
    x = 30,394,233,191.92/218,932.31
  6. Step 6: Final answer
    x = 138,829.36

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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.