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Finding the Fourth Proportional to 173.33, 259.80 and 115.59

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Solution

The fourth proportional to 173.33, 259.80 and 115.59 is: 173.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.33 : 259.80 = 115.59 : x
  2. Step 2: Convert to fraction form
    173.33/259.80 = 115.59/x
  3. Step 3: Cross multiply
    173.33x = 259.80 × 115.59
  4. Step 4: Simplify right side
    173.33x = 30,030.28
  5. Step 5: Solve for x
    x = 30,030.28/173.33
  6. Step 6: Final answer
    x = 173.25

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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.