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Finding the Fourth Proportional to 360.76, 497.57 and 242.69

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Solution

The fourth proportional to 360.76, 497.57 and 242.69 is: 334.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.76 : 497.57 = 242.69 : x
  2. Step 2: Convert to fraction form
    360.76/497.57 = 242.69/x
  3. Step 3: Cross multiply
    360.76x = 497.57 × 242.69
  4. Step 4: Simplify right side
    360.76x = 120,755.26
  5. Step 5: Solve for x
    x = 120,755.26/360.76
  6. Step 6: Final answer
    x = 334.72

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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.