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Finding the Fourth Proportional to 173.08, 259.58 and 64.85

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Solution

The fourth proportional to 173.08, 259.58 and 64.85 is: 97.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.08 : 259.58 = 64.85 : x
  2. Step 2: Convert to fraction form
    173.08/259.58 = 64.85/x
  3. Step 3: Cross multiply
    173.08x = 259.58 × 64.85
  4. Step 4: Simplify right side
    173.08x = 16,832.79
  5. Step 5: Solve for x
    x = 16,832.79/173.08
  6. Step 6: Final answer
    x = 97.25

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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.