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Finding the Fourth Proportional to 173.87, 260.46 and 143.12

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Solution

The fourth proportional to 173.87, 260.46 and 143.12 is: 214.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.87 : 260.46 = 143.12 : x
  2. Step 2: Convert to fraction form
    173.87/260.46 = 143.12/x
  3. Step 3: Cross multiply
    173.87x = 260.46 × 143.12
  4. Step 4: Simplify right side
    173.87x = 37,277.04
  5. Step 5: Solve for x
    x = 37,277.04/173.87
  6. Step 6: Final answer
    x = 214.40

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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.