Home / 203,391.44-305,174.28-98,288.72

Finding the Fourth Proportional to 203,391.44, 305,174.28 and 98,288.72

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Solution

The fourth proportional to 203,391.44, 305,174.28 and 98,288.72 is: 147,475.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,391.44 : 305,174.28 = 98,288.72 : x
  2. Step 2: Convert to fraction form
    203,391.44/305,174.28 = 98,288.72/x
  3. Step 3: Cross multiply
    203,391.44x = 305,174.28 × 98,288.72
  4. Step 4: Simplify right side
    203,391.44x = 29,995,189,358.12
  5. Step 5: Solve for x
    x = 29,995,189,358.12/203,391.44
  6. Step 6: Final answer
    x = 147,475.18

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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.