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Finding the Fourth Proportional to 220,850.40, 331,275.60 and 146,200.80

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Solution

The fourth proportional to 220,850.40, 331,275.60 and 146,200.80 is: 219,301.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,850.40 : 331,275.60 = 146,200.80 : x
  2. Step 2: Convert to fraction form
    220,850.40/331,275.60 = 146,200.80/x
  3. Step 3: Cross multiply
    220,850.40x = 331,275.60 × 146,200.80
  4. Step 4: Simplify right side
    220,850.40x = 48,432,757,740.48
  5. Step 5: Solve for x
    x = 48,432,757,740.48/220,850.40
  6. Step 6: Final answer
    x = 219,301.20

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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.