Home / 218,806.20-328,209.36-69,058.17

Finding the Fourth Proportional to 218,806.20, 328,209.36 and 69,058.17

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Solution

The fourth proportional to 218,806.20, 328,209.36 and 69,058.17 is: 103,587.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,806.20 : 328,209.36 = 69,058.17 : x
  2. Step 2: Convert to fraction form
    218,806.20/328,209.36 = 69,058.17/x
  3. Step 3: Cross multiply
    218,806.20x = 328,209.36 × 69,058.17
  4. Step 4: Simplify right side
    218,806.20x = 22,665,537,778.47
  5. Step 5: Solve for x
    x = 22,665,537,778.47/218,806.20
  6. Step 6: Final answer
    x = 103,587.27

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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.