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Finding the Fourth Proportional to 563.94, 845.90 and 217.42

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Solution

The fourth proportional to 563.94, 845.90 and 217.42 is: 326.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.94 : 845.90 = 217.42 : x
  2. Step 2: Convert to fraction form
    563.94/845.90 = 217.42/x
  3. Step 3: Cross multiply
    563.94x = 845.90 × 217.42
  4. Step 4: Simplify right side
    563.94x = 183,915.58
  5. Step 5: Solve for x
    x = 183,915.58/563.94
  6. Step 6: Final answer
    x = 326.13

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.