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Finding the Fourth Proportional to 173.10, 259.69 and 51.37

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Solution

The fourth proportional to 173.10, 259.69 and 51.37 is: 77.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.10 : 259.69 = 51.37 : x
  2. Step 2: Convert to fraction form
    173.10/259.69 = 51.37/x
  3. Step 3: Cross multiply
    173.10x = 259.69 × 51.37
  4. Step 4: Simplify right side
    173.10x = 13,340.28
  5. Step 5: Solve for x
    x = 13,340.28/173.10
  6. Step 6: Final answer
    x = 77.07

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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.