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Finding the Fourth Proportional to 296.32, 408.93 and 172.02

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Solution

The fourth proportional to 296.32, 408.93 and 172.02 is: 237.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    296.32 : 408.93 = 172.02 : x
  2. Step 2: Convert to fraction form
    296.32/408.93 = 172.02/x
  3. Step 3: Cross multiply
    296.32x = 408.93 × 172.02
  4. Step 4: Simplify right side
    296.32x = 70,344.14
  5. Step 5: Solve for x
    x = 70,344.14/296.32
  6. Step 6: Final answer
    x = 237.39

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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.