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Finding the Fourth Proportional to 177,625.80, 266,438.70 and 137,968.20

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Solution

The fourth proportional to 177,625.80, 266,438.70 and 137,968.20 is: 206,952.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,625.80 : 266,438.70 = 137,968.20 : x
  2. Step 2: Convert to fraction form
    177,625.80/266,438.70 = 137,968.20/x
  3. Step 3: Cross multiply
    177,625.80x = 266,438.70 × 137,968.20
  4. Step 4: Simplify right side
    177,625.80x = 36,760,067,849.34
  5. Step 5: Solve for x
    x = 36,760,067,849.34/177,625.80
  6. Step 6: Final answer
    x = 206,952.30

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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.