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Finding the Fourth Proportional to 176.07, 263.89 and 170.40

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Solution

The fourth proportional to 176.07, 263.89 and 170.40 is: 255.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.07 : 263.89 = 170.40 : x
  2. Step 2: Convert to fraction form
    176.07/263.89 = 170.40/x
  3. Step 3: Cross multiply
    176.07x = 263.89 × 170.40
  4. Step 4: Simplify right side
    176.07x = 44,966.86
  5. Step 5: Solve for x
    x = 44,966.86/176.07
  6. Step 6: Final answer
    x = 255.39

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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.