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Finding the Fourth Proportional to 167,998.80, 251,998.20 and 145,189.20

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Solution

The fourth proportional to 167,998.80, 251,998.20 and 145,189.20 is: 217,783.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,998.80 : 251,998.20 = 145,189.20 : x
  2. Step 2: Convert to fraction form
    167,998.80/251,998.20 = 145,189.20/x
  3. Step 3: Cross multiply
    167,998.80x = 251,998.20 × 145,189.20
  4. Step 4: Simplify right side
    167,998.80x = 36,587,417,059.44
  5. Step 5: Solve for x
    x = 36,587,417,059.44/167,998.80
  6. Step 6: Final answer
    x = 217,783.80

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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.