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Finding the Fourth Proportional to 247.68, 373.75 and 239.10

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Solution

The fourth proportional to 247.68, 373.75 and 239.10 is: 360.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.68 : 373.75 = 239.10 : x
  2. Step 2: Convert to fraction form
    247.68/373.75 = 239.10/x
  3. Step 3: Cross multiply
    247.68x = 373.75 × 239.10
  4. Step 4: Simplify right side
    247.68x = 89,363.63
  5. Step 5: Solve for x
    x = 89,363.63/247.68
  6. Step 6: Final answer
    x = 360.80

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.