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Finding the Fourth Proportional to 292.53, 438.38 and 162.33

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Solution

The fourth proportional to 292.53, 438.38 and 162.33 is: 243.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.53 : 438.38 = 162.33 : x
  2. Step 2: Convert to fraction form
    292.53/438.38 = 162.33/x
  3. Step 3: Cross multiply
    292.53x = 438.38 × 162.33
  4. Step 4: Simplify right side
    292.53x = 71,162.23
  5. Step 5: Solve for x
    x = 71,162.23/292.53
  6. Step 6: Final answer
    x = 243.26

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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.