Home / 220,583.76-304,323.12-129,884.28

Finding the Fourth Proportional to 220,583.76, 304,323.12 and 129,884.28

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Solution

The fourth proportional to 220,583.76, 304,323.12 and 129,884.28 is: 179,191.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,583.76 : 304,323.12 = 129,884.28 : x
  2. Step 2: Convert to fraction form
    220,583.76/304,323.12 = 129,884.28/x
  3. Step 3: Cross multiply
    220,583.76x = 304,323.12 × 129,884.28
  4. Step 4: Simplify right side
    220,583.76x = 39,526,789,328.55
  5. Step 5: Solve for x
    x = 39,526,789,328.55/220,583.76
  6. Step 6: Final answer
    x = 179,191.75

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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.