Home / 303,516.30-455,456.70-126,004.80

Finding the Fourth Proportional to 303,516.30, 455,456.70 and 126,004.80

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Solution

The fourth proportional to 303,516.30, 455,456.70 and 126,004.80 is: 189,082.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,516.30 : 455,456.70 = 126,004.80 : x
  2. Step 2: Convert to fraction form
    303,516.30/455,456.70 = 126,004.80/x
  3. Step 3: Cross multiply
    303,516.30x = 455,456.70 × 126,004.80
  4. Step 4: Simplify right side
    303,516.30x = 57,389,730,392.16
  5. Step 5: Solve for x
    x = 57,389,730,392.16/303,516.30
  6. Step 6: Final answer
    x = 189,082.86

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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.