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Finding the Fourth Proportional to 176.04, 262.80 and 145.26

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Solution

The fourth proportional to 176.04, 262.80 and 145.26 is: 216.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.04 : 262.80 = 145.26 : x
  2. Step 2: Convert to fraction form
    176.04/262.80 = 145.26/x
  3. Step 3: Cross multiply
    176.04x = 262.80 × 145.26
  4. Step 4: Simplify right side
    176.04x = 38,174.33
  5. Step 5: Solve for x
    x = 38,174.33/176.04
  6. Step 6: Final answer
    x = 216.85

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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.