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Finding the Fourth Proportional to 456.18, 630.05 and 363.93

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Solution

The fourth proportional to 456.18, 630.05 and 363.93 is: 502.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    456.18 : 630.05 = 363.93 : x
  2. Step 2: Convert to fraction form
    456.18/630.05 = 363.93/x
  3. Step 3: Cross multiply
    456.18x = 630.05 × 363.93
  4. Step 4: Simplify right side
    456.18x = 229,292.28
  5. Step 5: Solve for x
    x = 229,292.28/456.18
  6. Step 6: Final answer
    x = 502.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.