Home / 396,492.48-547,155.84-215,204.16

Finding the Fourth Proportional to 396,492.48, 547,155.84 and 215,204.16

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Solution

The fourth proportional to 396,492.48, 547,155.84 and 215,204.16 is: 296,979.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,492.48 : 547,155.84 = 215,204.16 : x
  2. Step 2: Convert to fraction form
    396,492.48/547,155.84 = 215,204.16/x
  3. Step 3: Cross multiply
    396,492.48x = 547,155.84 × 215,204.16
  4. Step 4: Simplify right side
    396,492.48x = 117,750,212,936.29
  5. Step 5: Solve for x
    x = 117,750,212,936.29/396,492.48
  6. Step 6: Final answer
    x = 296,979.69

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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.