Home / 218,930.28-328,439.90-69,193.96

Finding the Fourth Proportional to 218,930.28, 328,439.90 and 69,193.96

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Solution

The fourth proportional to 218,930.28, 328,439.90 and 69,193.96 is: 103,805.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,930.28 : 328,439.90 = 69,193.96 : x
  2. Step 2: Convert to fraction form
    218,930.28/328,439.90 = 69,193.96/x
  3. Step 3: Cross multiply
    218,930.28x = 328,439.90 × 69,193.96
  4. Step 4: Simplify right side
    218,930.28x = 22,726,057,303.00
  5. Step 5: Solve for x
    x = 22,726,057,303.00/218,930.28
  6. Step 6: Final answer
    x = 103,805.00

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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.