Home / 198,197.28-297,347.76-115,020

Finding the Fourth Proportional to 198,197.28, 297,347.76 and 115,020

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Solution

The fourth proportional to 198,197.28, 297,347.76 and 115,020 is: 172,560.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,197.28 : 297,347.76 = 115,020 : x
  2. Step 2: Convert to fraction form
    198,197.28/297,347.76 = 115,020/x
  3. Step 3: Cross multiply
    198,197.28x = 297,347.76 × 115,020
  4. Step 4: Simplify right side
    198,197.28x = 34,200,939,355.20
  5. Step 5: Solve for x
    x = 34,200,939,355.20/198,197.28
  6. Step 6: Final answer
    x = 172,560.08

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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.