Home / 231,391.20-347,119.20-98,270.40

Finding the Fourth Proportional to 231,391.20, 347,119.20 and 98,270.40

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Solution

The fourth proportional to 231,391.20, 347,119.20 and 98,270.40 is: 147,419.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,391.20 : 347,119.20 = 98,270.40 : x
  2. Step 2: Convert to fraction form
    231,391.20/347,119.20 = 98,270.40/x
  3. Step 3: Cross multiply
    231,391.20x = 347,119.20 × 98,270.40
  4. Step 4: Simplify right side
    231,391.20x = 34,111,542,631.68
  5. Step 5: Solve for x
    x = 34,111,542,631.68/231,391.20
  6. Step 6: Final answer
    x = 147,419.36

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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.