Home / 220,566.33-304,328.48-129,915.18

Finding the Fourth Proportional to 220,566.33, 304,328.48 and 129,915.18

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Solution

The fourth proportional to 220,566.33, 304,328.48 and 129,915.18 is: 179,251.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,566.33 : 304,328.48 = 129,915.18 : x
  2. Step 2: Convert to fraction form
    220,566.33/304,328.48 = 129,915.18/x
  3. Step 3: Cross multiply
    220,566.33x = 304,328.48 × 129,915.18
  4. Step 4: Simplify right side
    220,566.33x = 39,536,888,608.75
  5. Step 5: Solve for x
    x = 39,536,888,608.75/220,566.33
  6. Step 6: Final answer
    x = 179,251.70

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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.