Home / 220,313.44-304,025.56-129,648.52

Finding the Fourth Proportional to 220,313.44, 304,025.56 and 129,648.52

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Solution

The fourth proportional to 220,313.44, 304,025.56 and 129,648.52 is: 178,910.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,313.44 : 304,025.56 = 129,648.52 : x
  2. Step 2: Convert to fraction form
    220,313.44/304,025.56 = 129,648.52/x
  3. Step 3: Cross multiply
    220,313.44x = 304,025.56 × 129,648.52
  4. Step 4: Simplify right side
    220,313.44x = 39,416,463,896.17
  5. Step 5: Solve for x
    x = 39,416,463,896.17/220,313.44
  6. Step 6: Final answer
    x = 178,910.85

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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.