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Finding the Fourth Proportional to 220,104.30, 330,156.45 and 218,792.10

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Solution

The fourth proportional to 220,104.30, 330,156.45 and 218,792.10 is: 328,188.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,104.30 : 330,156.45 = 218,792.10 : x
  2. Step 2: Convert to fraction form
    220,104.30/330,156.45 = 218,792.10/x
  3. Step 3: Cross multiply
    220,104.30x = 330,156.45 × 218,792.10
  4. Step 4: Simplify right side
    220,104.30x = 72,235,623,024.05
  5. Step 5: Solve for x
    x = 72,235,623,024.05/220,104.30
  6. Step 6: Final answer
    x = 328,188.15

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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.