Home / 198,987.28-274,621.82-148,598.80

Finding the Fourth Proportional to 198,987.28, 274,621.82 and 148,598.80

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Solution

The fourth proportional to 198,987.28, 274,621.82 and 148,598.80 is: 205,080.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,987.28 : 274,621.82 = 148,598.80 : x
  2. Step 2: Convert to fraction form
    198,987.28/274,621.82 = 148,598.80/x
  3. Step 3: Cross multiply
    198,987.28x = 274,621.82 × 148,598.80
  4. Step 4: Simplify right side
    198,987.28x = 40,808,472,905.82
  5. Step 5: Solve for x
    x = 40,808,472,905.82/198,987.28
  6. Step 6: Final answer
    x = 205,080.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.