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Finding the Fourth Proportional to 233.40, 350.13 and 79.29

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Solution

The fourth proportional to 233.40, 350.13 and 79.29 is: 118.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.40 : 350.13 = 79.29 : x
  2. Step 2: Convert to fraction form
    233.40/350.13 = 79.29/x
  3. Step 3: Cross multiply
    233.40x = 350.13 × 79.29
  4. Step 4: Simplify right side
    233.40x = 27,761.81
  5. Step 5: Solve for x
    x = 27,761.81/233.40
  6. Step 6: Final answer
    x = 118.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.