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Finding the Fourth Proportional to 630.28, 945.45 and 337.66

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Solution

The fourth proportional to 630.28, 945.45 and 337.66 is: 506.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.28 : 945.45 = 337.66 : x
  2. Step 2: Convert to fraction form
    630.28/945.45 = 337.66/x
  3. Step 3: Cross multiply
    630.28x = 945.45 × 337.66
  4. Step 4: Simplify right side
    630.28x = 319,240.65
  5. Step 5: Solve for x
    x = 319,240.65/630.28
  6. Step 6: Final answer
    x = 506.51

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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.