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Finding the Fourth Proportional to 447.24, 672.01 and 380.35

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Solution

The fourth proportional to 447.24, 672.01 and 380.35 is: 571.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.24 : 672.01 = 380.35 : x
  2. Step 2: Convert to fraction form
    447.24/672.01 = 380.35/x
  3. Step 3: Cross multiply
    447.24x = 672.01 × 380.35
  4. Step 4: Simplify right side
    447.24x = 255,599.00
  5. Step 5: Solve for x
    x = 255,599.00/447.24
  6. Step 6: Final answer
    x = 571.50

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.