Home / 396,445.58-547,095.16-215,157.46

Finding the Fourth Proportional to 396,445.58, 547,095.16 and 215,157.46

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Solution

The fourth proportional to 396,445.58, 547,095.16 and 215,157.46 is: 296,917.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,445.58 : 547,095.16 = 215,157.46 : x
  2. Step 2: Convert to fraction form
    396,445.58/547,095.16 = 215,157.46/x
  3. Step 3: Cross multiply
    396,445.58x = 547,095.16 × 215,157.46
  4. Step 4: Simplify right side
    396,445.58x = 117,711,605,003.89
  5. Step 5: Solve for x
    x = 117,711,605,003.89/396,445.58
  6. Step 6: Final answer
    x = 296,917.44

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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.