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Finding the Fourth Proportional to 630.96, 946.38 and 306.24

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Solution

The fourth proportional to 630.96, 946.38 and 306.24 is: 459.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.96 : 946.38 = 306.24 : x
  2. Step 2: Convert to fraction form
    630.96/946.38 = 306.24/x
  3. Step 3: Cross multiply
    630.96x = 946.38 × 306.24
  4. Step 4: Simplify right side
    630.96x = 289,819.41
  5. Step 5: Solve for x
    x = 289,819.41/630.96
  6. Step 6: Final answer
    x = 459.33

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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.