Home / 218,920.61-328,416.02-92,562.18

Finding the Fourth Proportional to 218,920.61, 328,416.02 and 92,562.18

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Solution

The fourth proportional to 218,920.61, 328,416.02 and 92,562.18 is: 138,858.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,920.61 : 328,416.02 = 92,562.18 : x
  2. Step 2: Convert to fraction form
    218,920.61/328,416.02 = 92,562.18/x
  3. Step 3: Cross multiply
    218,920.61x = 328,416.02 × 92,562.18
  4. Step 4: Simplify right side
    218,920.61x = 30,398,902,295.31
  5. Step 5: Solve for x
    x = 30,398,902,295.31/218,920.61
  6. Step 6: Final answer
    x = 138,858.11

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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.