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Finding the Fourth Proportional to 192,948.80, 288,808.80 and 137,652.80

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Solution

The fourth proportional to 192,948.80, 288,808.80 and 137,652.80 is: 206,040.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,948.80 : 288,808.80 = 137,652.80 : x
  2. Step 2: Convert to fraction form
    192,948.80/288,808.80 = 137,652.80/x
  3. Step 3: Cross multiply
    192,948.80x = 288,808.80 × 137,652.80
  4. Step 4: Simplify right side
    192,948.80x = 39,755,339,984.64
  5. Step 5: Solve for x
    x = 39,755,339,984.64/192,948.80
  6. Step 6: Final answer
    x = 206,040.88

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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.