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Finding the Fourth Proportional to 176.10, 242.31 and 163.02

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Solution

The fourth proportional to 176.10, 242.31 and 163.02 is: 224.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.10 : 242.31 = 163.02 : x
  2. Step 2: Convert to fraction form
    176.10/242.31 = 163.02/x
  3. Step 3: Cross multiply
    176.10x = 242.31 × 163.02
  4. Step 4: Simplify right side
    176.10x = 39,501.38
  5. Step 5: Solve for x
    x = 39,501.38/176.10
  6. Step 6: Final answer
    x = 224.31

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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.