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Finding the Fourth Proportional to 284.68, 392.67 and 179.77

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Solution

The fourth proportional to 284.68, 392.67 and 179.77 is: 247.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    284.68 : 392.67 = 179.77 : x
  2. Step 2: Convert to fraction form
    284.68/392.67 = 179.77/x
  3. Step 3: Cross multiply
    284.68x = 392.67 × 179.77
  4. Step 4: Simplify right side
    284.68x = 70,590.29
  5. Step 5: Solve for x
    x = 70,590.29/284.68
  6. Step 6: Final answer
    x = 247.96

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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.