Home / 396,410.06-547,047.31-215,121.93

Finding the Fourth Proportional to 396,410.06, 547,047.31 and 215,121.93

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Solution

The fourth proportional to 396,410.06, 547,047.31 and 215,121.93 is: 296,869.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,410.06 : 547,047.31 = 215,121.93 : x
  2. Step 2: Convert to fraction form
    396,410.06/547,047.31 = 215,121.93/x
  3. Step 3: Cross multiply
    396,410.06x = 547,047.31 × 215,121.93
  4. Step 4: Simplify right side
    396,410.06x = 117,681,873,128.51
  5. Step 5: Solve for x
    x = 117,681,873,128.51/396,410.06
  6. Step 6: Final answer
    x = 296,869.04

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1.5x scale

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.