Home / 396,438.16-547,085.02-215,150.12

Finding the Fourth Proportional to 396,438.16, 547,085.02 and 215,150.12

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Solution

The fourth proportional to 396,438.16, 547,085.02 and 215,150.12 is: 296,907.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,438.16 : 547,085.02 = 215,150.12 : x
  2. Step 2: Convert to fraction form
    396,438.16/547,085.02 = 215,150.12/x
  3. Step 3: Cross multiply
    396,438.16x = 547,085.02 × 215,150.12
  4. Step 4: Simplify right side
    396,438.16x = 117,705,407,703.20
  5. Step 5: Solve for x
    x = 117,705,407,703.20/396,438.16
  6. Step 6: Final answer
    x = 296,907.36

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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.