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Finding the Fourth Proportional to 602.42, 903.63 and 217.67

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Solution

The fourth proportional to 602.42, 903.63 and 217.67 is: 326.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.42 : 903.63 = 217.67 : x
  2. Step 2: Convert to fraction form
    602.42/903.63 = 217.67/x
  3. Step 3: Cross multiply
    602.42x = 903.63 × 217.67
  4. Step 4: Simplify right side
    602.42x = 196,693.14
  5. Step 5: Solve for x
    x = 196,693.14/602.42
  6. Step 6: Final answer
    x = 326.51

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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.