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Finding the Fourth Proportional to 219,728.40, 329,738.40 and 124,958.40

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Solution

The fourth proportional to 219,728.40, 329,738.40 and 124,958.40 is: 187,520.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,728.40 : 329,738.40 = 124,958.40 : x
  2. Step 2: Convert to fraction form
    219,728.40/329,738.40 = 124,958.40/x
  3. Step 3: Cross multiply
    219,728.40x = 329,738.40 × 124,958.40
  4. Step 4: Simplify right side
    219,728.40x = 41,203,582,882.56
  5. Step 5: Solve for x
    x = 41,203,582,882.56/219,728.40
  6. Step 6: Final answer
    x = 187,520.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.