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Finding the Fourth Proportional to 251.48, 347.06 and 148.04

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Solution

The fourth proportional to 251.48, 347.06 and 148.04 is: 204.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.48 : 347.06 = 148.04 : x
  2. Step 2: Convert to fraction form
    251.48/347.06 = 148.04/x
  3. Step 3: Cross multiply
    251.48x = 347.06 × 148.04
  4. Step 4: Simplify right side
    251.48x = 51,378.76
  5. Step 5: Solve for x
    x = 51,378.76/251.48
  6. Step 6: Final answer
    x = 204.31

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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.