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Finding the Fourth Proportional to 173.95, 260.62 and 145.25

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Solution

The fourth proportional to 173.95, 260.62 and 145.25 is: 217.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.95 : 260.62 = 145.25 : x
  2. Step 2: Convert to fraction form
    173.95/260.62 = 145.25/x
  3. Step 3: Cross multiply
    173.95x = 260.62 × 145.25
  4. Step 4: Simplify right side
    173.95x = 37,855.06
  5. Step 5: Solve for x
    x = 37,855.06/173.95
  6. Step 6: Final answer
    x = 217.62

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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.