Home / 288,939.28-398,701.27-166,471.72

Finding the Fourth Proportional to 288,939.28, 398,701.27 and 166,471.72

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Solution

The fourth proportional to 288,939.28, 398,701.27 and 166,471.72 is: 229,710.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,939.28 : 398,701.27 = 166,471.72 : x
  2. Step 2: Convert to fraction form
    288,939.28/398,701.27 = 166,471.72/x
  3. Step 3: Cross multiply
    288,939.28x = 398,701.27 × 166,471.72
  4. Step 4: Simplify right side
    288,939.28x = 66,372,486,183.08
  5. Step 5: Solve for x
    x = 66,372,486,183.08/288,939.28
  6. Step 6: Final answer
    x = 229,710.85

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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.