Home / 220,385.66-304,195.28-129,794.18

Finding the Fourth Proportional to 220,385.66, 304,195.28 and 129,794.18

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Solution

The fourth proportional to 220,385.66, 304,195.28 and 129,794.18 is: 179,153.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,385.66 : 304,195.28 = 129,794.18 : x
  2. Step 2: Convert to fraction form
    220,385.66/304,195.28 = 129,794.18/x
  3. Step 3: Cross multiply
    220,385.66x = 304,195.28 × 129,794.18
  4. Step 4: Simplify right side
    220,385.66x = 39,482,774,757.52
  5. Step 5: Solve for x
    x = 39,482,774,757.52/220,385.66
  6. Step 6: Final answer
    x = 179,153.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.