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Finding the Fourth Proportional to 249.08, 373.71 and 172.02

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Solution

The fourth proportional to 249.08, 373.71 and 172.02 is: 258.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.08 : 373.71 = 172.02 : x
  2. Step 2: Convert to fraction form
    249.08/373.71 = 172.02/x
  3. Step 3: Cross multiply
    249.08x = 373.71 × 172.02
  4. Step 4: Simplify right side
    249.08x = 64,287.64
  5. Step 5: Solve for x
    x = 64,287.64/249.08
  6. Step 6: Final answer
    x = 258.11

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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.