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Finding the Fourth Proportional to 176.66, 262.90 and 170.18

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Solution

The fourth proportional to 176.66, 262.90 and 170.18 is: 253.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.66 : 262.90 = 170.18 : x
  2. Step 2: Convert to fraction form
    176.66/262.90 = 170.18/x
  3. Step 3: Cross multiply
    176.66x = 262.90 × 170.18
  4. Step 4: Simplify right side
    176.66x = 44,740.32
  5. Step 5: Solve for x
    x = 44,740.32/176.66
  6. Step 6: Final answer
    x = 253.26

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.