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Finding the Fourth Proportional to 219,551.76, 329,853 and 140,819.76

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Solution

The fourth proportional to 219,551.76, 329,853 and 140,819.76 is: 211,566.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,551.76 : 329,853 = 140,819.76 : x
  2. Step 2: Convert to fraction form
    219,551.76/329,853 = 140,819.76/x
  3. Step 3: Cross multiply
    219,551.76x = 329,853 × 140,819.76
  4. Step 4: Simplify right side
    219,551.76x = 46,449,820,295.28
  5. Step 5: Solve for x
    x = 46,449,820,295.28/219,551.76
  6. Step 6: Final answer
    x = 211,566.60

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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.