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Finding the Fourth Proportional to 169.32, 233.46 and 151.08

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Solution

The fourth proportional to 169.32, 233.46 and 151.08 is: 208.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.32 : 233.46 = 151.08 : x
  2. Step 2: Convert to fraction form
    169.32/233.46 = 151.08/x
  3. Step 3: Cross multiply
    169.32x = 233.46 × 151.08
  4. Step 4: Simplify right side
    169.32x = 35,271.14
  5. Step 5: Solve for x
    x = 35,271.14/169.32
  6. Step 6: Final answer
    x = 208.31

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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.