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Finding the Fourth Proportional to 146,776.20, 220,164.30 and 145,854.60

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Solution

The fourth proportional to 146,776.20, 220,164.30 and 145,854.60 is: 218,781.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,776.20 : 220,164.30 = 145,854.60 : x
  2. Step 2: Convert to fraction form
    146,776.20/220,164.30 = 145,854.60/x
  3. Step 3: Cross multiply
    146,776.20x = 220,164.30 × 145,854.60
  4. Step 4: Simplify right side
    146,776.20x = 32,111,975,910.78
  5. Step 5: Solve for x
    x = 32,111,975,910.78/146,776.20
  6. Step 6: Final answer
    x = 218,781.90

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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.