Home / 253,401.31-380,289.23-204,076.72

Finding the Fourth Proportional to 253,401.31, 380,289.23 and 204,076.72

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Solution

The fourth proportional to 253,401.31, 380,289.23 and 204,076.72 is: 306,265.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,401.31 : 380,289.23 = 204,076.72 : x
  2. Step 2: Convert to fraction form
    253,401.31/380,289.23 = 204,076.72/x
  3. Step 3: Cross multiply
    253,401.31x = 380,289.23 × 204,076.72
  4. Step 4: Simplify right side
    253,401.31x = 77,608,176,790.86
  5. Step 5: Solve for x
    x = 77,608,176,790.86/253,401.31
  6. Step 6: Final answer
    x = 306,265.88

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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.