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Finding the Fourth Proportional to 233.84, 322.64 and 135.57

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Solution

The fourth proportional to 233.84, 322.64 and 135.57 is: 187.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.84 : 322.64 = 135.57 : x
  2. Step 2: Convert to fraction form
    233.84/322.64 = 135.57/x
  3. Step 3: Cross multiply
    233.84x = 322.64 × 135.57
  4. Step 4: Simplify right side
    233.84x = 43,740.30
  5. Step 5: Solve for x
    x = 43,740.30/233.84
  6. Step 6: Final answer
    x = 187.05

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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.