Home / 396,407.02-547,042.03-215,118.95

Finding the Fourth Proportional to 396,407.02, 547,042.03 and 215,118.95

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Solution

The fourth proportional to 396,407.02, 547,042.03 and 215,118.95 is: 296,864.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,407.02 : 547,042.03 = 215,118.95 : x
  2. Step 2: Convert to fraction form
    396,407.02/547,042.03 = 215,118.95/x
  3. Step 3: Cross multiply
    396,407.02x = 547,042.03 × 215,118.95
  4. Step 4: Simplify right side
    396,407.02x = 117,679,106,877.57
  5. Step 5: Solve for x
    x = 117,679,106,877.57/396,407.02
  6. Step 6: Final answer
    x = 296,864.33

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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.