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Finding the Fourth Proportional to 240.17, 360.30 and 75.63

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Solution

The fourth proportional to 240.17, 360.30 and 75.63 is: 113.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.17 : 360.30 = 75.63 : x
  2. Step 2: Convert to fraction form
    240.17/360.30 = 75.63/x
  3. Step 3: Cross multiply
    240.17x = 360.30 × 75.63
  4. Step 4: Simplify right side
    240.17x = 27,249.11
  5. Step 5: Solve for x
    x = 27,249.11/240.17
  6. Step 6: Final answer
    x = 113.46

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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.