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Finding the Fourth Proportional to 170.86, 256.32 and 62.65

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Solution

The fourth proportional to 170.86, 256.32 and 62.65 is: 93.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.86 : 256.32 = 62.65 : x
  2. Step 2: Convert to fraction form
    170.86/256.32 = 62.65/x
  3. Step 3: Cross multiply
    170.86x = 256.32 × 62.65
  4. Step 4: Simplify right side
    170.86x = 16,057.81
  5. Step 5: Solve for x
    x = 16,057.81/170.86
  6. Step 6: Final answer
    x = 93.98

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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.