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Finding the Fourth Proportional to 219,760.80, 329,122.80 and 149,258.40

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Solution

The fourth proportional to 219,760.80, 329,122.80 and 149,258.40 is: 223,535.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,760.80 : 329,122.80 = 149,258.40 : x
  2. Step 2: Convert to fraction form
    219,760.80/329,122.80 = 149,258.40/x
  3. Step 3: Cross multiply
    219,760.80x = 329,122.80 × 149,258.40
  4. Step 4: Simplify right side
    219,760.80x = 49,124,342,531.52
  5. Step 5: Solve for x
    x = 49,124,342,531.52/219,760.80
  6. Step 6: Final answer
    x = 223,535.51

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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.