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Finding the Fourth Proportional to 233.75, 322.54 and 135.53

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Solution

The fourth proportional to 233.75, 322.54 and 135.53 is: 187.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.75 : 322.54 = 135.53 : x
  2. Step 2: Convert to fraction form
    233.75/322.54 = 135.53/x
  3. Step 3: Cross multiply
    233.75x = 322.54 × 135.53
  4. Step 4: Simplify right side
    233.75x = 43,713.85
  5. Step 5: Solve for x
    x = 43,713.85/233.75
  6. Step 6: Final answer
    x = 187.01

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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.