Home / 396,484.03-547,148.57-215,196.03

Finding the Fourth Proportional to 396,484.03, 547,148.57 and 215,196.03

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Solution

The fourth proportional to 396,484.03, 547,148.57 and 215,196.03 is: 296,970.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,484.03 : 547,148.57 = 215,196.03 : x
  2. Step 2: Convert to fraction form
    396,484.03/547,148.57 = 215,196.03/x
  3. Step 3: Cross multiply
    396,484.03x = 547,148.57 × 215,196.03
  4. Step 4: Simplify right side
    396,484.03x = 117,744,197,640.33
  5. Step 5: Solve for x
    x = 117,744,197,640.33/396,484.03
  6. Step 6: Final answer
    x = 296,970.84

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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.