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Finding the Fourth Proportional to 398.50, 549.72 and 241.06

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Solution

The fourth proportional to 398.50, 549.72 and 241.06 is: 332.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    398.50 : 549.72 = 241.06 : x
  2. Step 2: Convert to fraction form
    398.50/549.72 = 241.06/x
  3. Step 3: Cross multiply
    398.50x = 549.72 × 241.06
  4. Step 4: Simplify right side
    398.50x = 132,515.50
  5. Step 5: Solve for x
    x = 132,515.50/398.50
  6. Step 6: Final answer
    x = 332.54

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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.