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Finding the Fourth Proportional to 446.18, 669.27 and 394.34

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Solution

The fourth proportional to 446.18, 669.27 and 394.34 is: 591.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    446.18 : 669.27 = 394.34 : x
  2. Step 2: Convert to fraction form
    446.18/669.27 = 394.34/x
  3. Step 3: Cross multiply
    446.18x = 669.27 × 394.34
  4. Step 4: Simplify right side
    446.18x = 263,919.93
  5. Step 5: Solve for x
    x = 263,919.93/446.18
  6. Step 6: Final answer
    x = 591.51

Related Problems

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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.