Home / 543,139.30-815,000.55-227,628.10

Finding the Fourth Proportional to 543,139.30, 815,000.55 and 227,628.10

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Solution

The fourth proportional to 543,139.30, 815,000.55 and 227,628.10 is: 341,564.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,139.30 : 815,000.55 = 227,628.10 : x
  2. Step 2: Convert to fraction form
    543,139.30/815,000.55 = 227,628.10/x
  3. Step 3: Cross multiply
    543,139.30x = 815,000.55 × 227,628.10
  4. Step 4: Simplify right side
    543,139.30x = 185,517,026,695.46
  5. Step 5: Solve for x
    x = 185,517,026,695.46/543,139.30
  6. Step 6: Final answer
    x = 341,564.36

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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.