Home / 220,519.70-304,270.26-129,842.58

Finding the Fourth Proportional to 220,519.70, 304,270.26 and 129,842.58

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Solution

The fourth proportional to 220,519.70, 304,270.26 and 129,842.58 is: 179,155.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,519.70 : 304,270.26 = 129,842.58 : x
  2. Step 2: Convert to fraction form
    220,519.70/304,270.26 = 129,842.58/x
  3. Step 3: Cross multiply
    220,519.70x = 304,270.26 × 129,842.58
  4. Step 4: Simplify right side
    220,519.70x = 39,507,235,575.67
  5. Step 5: Solve for x
    x = 39,507,235,575.67/220,519.70
  6. Step 6: Final answer
    x = 179,155.13

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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.