Home / 396,388.16-547,012.84-215,095.48

Finding the Fourth Proportional to 396,388.16, 547,012.84 and 215,095.48

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Solution

The fourth proportional to 396,388.16, 547,012.84 and 215,095.48 is: 296,830.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,388.16 : 547,012.84 = 215,095.48 : x
  2. Step 2: Convert to fraction form
    396,388.16/547,012.84 = 215,095.48/x
  3. Step 3: Cross multiply
    396,388.16x = 547,012.84 × 215,095.48
  4. Step 4: Simplify right side
    396,388.16x = 117,659,989,385.96
  5. Step 5: Solve for x
    x = 117,659,989,385.96/396,388.16
  6. Step 6: Final answer
    x = 296,830.23

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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.