Home / 396,417.06-547,055.92-215,129.02

Finding the Fourth Proportional to 396,417.06, 547,055.92 and 215,129.02

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Solution

The fourth proportional to 396,417.06, 547,055.92 and 215,129.02 is: 296,878.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,417.06 : 547,055.92 = 215,129.02 : x
  2. Step 2: Convert to fraction form
    396,417.06/547,055.92 = 215,129.02/x
  3. Step 3: Cross multiply
    396,417.06x = 547,055.92 × 215,129.02
  4. Step 4: Simplify right side
    396,417.06x = 117,687,603,954.80
  5. Step 5: Solve for x
    x = 117,687,603,954.80/396,417.06
  6. Step 6: Final answer
    x = 296,878.25

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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.