Home / 396,440.16-547,087.80-215,152.14

Finding the Fourth Proportional to 396,440.16, 547,087.80 and 215,152.14

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Solution

The fourth proportional to 396,440.16, 547,087.80 and 215,152.14 is: 296,910.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,440.16 : 547,087.80 = 215,152.14 : x
  2. Step 2: Convert to fraction form
    396,440.16/547,087.80 = 215,152.14/x
  3. Step 3: Cross multiply
    396,440.16x = 547,087.80 × 215,152.14
  4. Step 4: Simplify right side
    396,440.16x = 117,707,110,937.89
  5. Step 5: Solve for x
    x = 117,707,110,937.89/396,440.16
  6. Step 6: Final answer
    x = 296,910.16

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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.