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Finding the Fourth Proportional to 146,767.20, 220,150.80 and 145,845.60

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Solution

The fourth proportional to 146,767.20, 220,150.80 and 145,845.60 is: 218,768.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,767.20 : 220,150.80 = 145,845.60 : x
  2. Step 2: Convert to fraction form
    146,767.20/220,150.80 = 145,845.60/x
  3. Step 3: Cross multiply
    146,767.20x = 220,150.80 × 145,845.60
  4. Step 4: Simplify right side
    146,767.20x = 32,108,025,516.48
  5. Step 5: Solve for x
    x = 32,108,025,516.48/146,767.20
  6. Step 6: Final answer
    x = 218,768.40

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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.