Home / 481,143.38-721,715.06-148,719.38

Finding the Fourth Proportional to 481,143.38, 721,715.06 and 148,719.38

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Solution

The fourth proportional to 481,143.38, 721,715.06 and 148,719.38 is: 223,079.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,143.38 : 721,715.06 = 148,719.38 : x
  2. Step 2: Convert to fraction form
    481,143.38/721,715.06 = 148,719.38/x
  3. Step 3: Cross multiply
    481,143.38x = 721,715.06 × 148,719.38
  4. Step 4: Simplify right side
    481,143.38x = 107,333,013,023.09
  5. Step 5: Solve for x
    x = 107,333,013,023.09/481,143.38
  6. Step 6: Final answer
    x = 223,079.06

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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.