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Finding the Fourth Proportional to 219,562.40, 329,149.20 and 144,718.40

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Solution

The fourth proportional to 219,562.40, 329,149.20 and 144,718.40 is: 216,949.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,562.40 : 329,149.20 = 144,718.40 : x
  2. Step 2: Convert to fraction form
    219,562.40/329,149.20 = 144,718.40/x
  3. Step 3: Cross multiply
    219,562.40x = 329,149.20 × 144,718.40
  4. Step 4: Simplify right side
    219,562.40x = 47,633,945,585.28
  5. Step 5: Solve for x
    x = 47,633,945,585.28/219,562.40
  6. Step 6: Final answer
    x = 216,949.47

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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.