Home / 396,485.17-547,150.13-215,197.16

Finding the Fourth Proportional to 396,485.17, 547,150.13 and 215,197.16

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Solution

The fourth proportional to 396,485.17, 547,150.13 and 215,197.16 is: 296,972.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,485.17 : 547,150.13 = 215,197.16 : x
  2. Step 2: Convert to fraction form
    396,485.17/547,150.13 = 215,197.16/x
  3. Step 3: Cross multiply
    396,485.17x = 547,150.13 × 215,197.16
  4. Step 4: Simplify right side
    396,485.17x = 117,745,154,069.63
  5. Step 5: Solve for x
    x = 117,745,154,069.63/396,485.17
  6. Step 6: Final answer
    x = 296,972.40

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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.