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Finding the Fourth Proportional to 235.13, 351.93 and 173.40

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Solution

The fourth proportional to 235.13, 351.93 and 173.40 is: 259.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.13 : 351.93 = 173.40 : x
  2. Step 2: Convert to fraction form
    235.13/351.93 = 173.40/x
  3. Step 3: Cross multiply
    235.13x = 351.93 × 173.40
  4. Step 4: Simplify right side
    235.13x = 61,023.80
  5. Step 5: Solve for x
    x = 61,023.80/235.13
  6. Step 6: Final answer
    x = 259.54

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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.