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Finding the Fourth Proportional to 169.64, 253.33 and 148.04

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Solution

The fourth proportional to 169.64, 253.33 and 148.04 is: 221.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.64 : 253.33 = 148.04 : x
  2. Step 2: Convert to fraction form
    169.64/253.33 = 148.04/x
  3. Step 3: Cross multiply
    169.64x = 253.33 × 148.04
  4. Step 4: Simplify right side
    169.64x = 37,502.97
  5. Step 5: Solve for x
    x = 37,502.97/169.64
  6. Step 6: Final answer
    x = 221.07

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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.