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Finding the Fourth Proportional to 250.48, 373.90 and 218.08

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Solution

The fourth proportional to 250.48, 373.90 and 218.08 is: 325.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.48 : 373.90 = 218.08 : x
  2. Step 2: Convert to fraction form
    250.48/373.90 = 218.08/x
  3. Step 3: Cross multiply
    250.48x = 373.90 × 218.08
  4. Step 4: Simplify right side
    250.48x = 81,540.11
  5. Step 5: Solve for x
    x = 81,540.11/250.48
  6. Step 6: Final answer
    x = 325.54

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.