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Finding the Fourth Proportional to 508.89, 763.34 and 162.23

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Solution

The fourth proportional to 508.89, 763.34 and 162.23 is: 243.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.89 : 763.34 = 162.23 : x
  2. Step 2: Convert to fraction form
    508.89/763.34 = 162.23/x
  3. Step 3: Cross multiply
    508.89x = 763.34 × 162.23
  4. Step 4: Simplify right side
    508.89x = 123,836.65
  5. Step 5: Solve for x
    x = 123,836.65/508.89
  6. Step 6: Final answer
    x = 243.35

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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.