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Finding the Fourth Proportional to 219,587.60, 329,385.02 and 61,819.84

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Solution

The fourth proportional to 219,587.60, 329,385.02 and 61,819.84 is: 92,730.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,587.60 : 329,385.02 = 61,819.84 : x
  2. Step 2: Convert to fraction form
    219,587.60/329,385.02 = 61,819.84/x
  3. Step 3: Cross multiply
    219,587.60x = 329,385.02 × 61,819.84
  4. Step 4: Simplify right side
    219,587.60x = 20,362,529,234.80
  5. Step 5: Solve for x
    x = 20,362,529,234.80/219,587.60
  6. Step 6: Final answer
    x = 92,730.78

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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.