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Finding the Fourth Proportional to 262.80, 362.88 and 175.86

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Solution

The fourth proportional to 262.80, 362.88 and 175.86 is: 242.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.80 : 362.88 = 175.86 : x
  2. Step 2: Convert to fraction form
    262.80/362.88 = 175.86/x
  3. Step 3: Cross multiply
    262.80x = 362.88 × 175.86
  4. Step 4: Simplify right side
    262.80x = 63,816.08
  5. Step 5: Solve for x
    x = 63,816.08/262.80
  6. Step 6: Final answer
    x = 242.83

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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.