Home / 220,238.28-303,876.77-129,598.20

Finding the Fourth Proportional to 220,238.28, 303,876.77 and 129,598.20

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Solution

The fourth proportional to 220,238.28, 303,876.77 and 129,598.20 is: 178,814.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,238.28 : 303,876.77 = 129,598.20 : x
  2. Step 2: Convert to fraction form
    220,238.28/303,876.77 = 129,598.20/x
  3. Step 3: Cross multiply
    220,238.28x = 303,876.77 × 129,598.20
  4. Step 4: Simplify right side
    220,238.28x = 39,381,881,765.82
  5. Step 5: Solve for x
    x = 39,381,881,765.82/220,238.28
  6. Step 6: Final answer
    x = 178,814.88

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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.