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Finding the Fourth Proportional to 220,104.60, 330,156.90 and 217,152.15

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Solution

The fourth proportional to 220,104.60, 330,156.90 and 217,152.15 is: 325,728.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,104.60 : 330,156.90 = 217,152.15 : x
  2. Step 2: Convert to fraction form
    220,104.60/330,156.90 = 217,152.15/x
  3. Step 3: Cross multiply
    220,104.60x = 330,156.90 × 217,152.15
  4. Step 4: Simplify right side
    220,104.60x = 71,694,280,672.34
  5. Step 5: Solve for x
    x = 71,694,280,672.34/220,104.60
  6. Step 6: Final answer
    x = 325,728.23

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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.