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Finding the Fourth Proportional to 176.45, 263.22 and 156.20

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Solution

The fourth proportional to 176.45, 263.22 and 156.20 is: 233.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.45 : 263.22 = 156.20 : x
  2. Step 2: Convert to fraction form
    176.45/263.22 = 156.20/x
  3. Step 3: Cross multiply
    176.45x = 263.22 × 156.20
  4. Step 4: Simplify right side
    176.45x = 41,114.96
  5. Step 5: Solve for x
    x = 41,114.96/176.45
  6. Step 6: Final answer
    x = 233.01

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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.