Home / 396,442.30-547,090.64-215,154.17

Finding the Fourth Proportional to 396,442.30, 547,090.64 and 215,154.17

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Solution

The fourth proportional to 396,442.30, 547,090.64 and 215,154.17 is: 296,912.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,442.30 : 547,090.64 = 215,154.17 : x
  2. Step 2: Convert to fraction form
    396,442.30/547,090.64 = 215,154.17/x
  3. Step 3: Cross multiply
    396,442.30x = 547,090.64 × 215,154.17
  4. Step 4: Simplify right side
    396,442.30x = 117,708,831,488.20
  5. Step 5: Solve for x
    x = 117,708,831,488.20/396,442.30
  6. Step 6: Final answer
    x = 296,912.90

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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.