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Finding the Fourth Proportional to 173.58, 259.05 and 155.34

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Solution

The fourth proportional to 173.58, 259.05 and 155.34 is: 231.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.58 : 259.05 = 155.34 : x
  2. Step 2: Convert to fraction form
    173.58/259.05 = 155.34/x
  3. Step 3: Cross multiply
    173.58x = 259.05 × 155.34
  4. Step 4: Simplify right side
    173.58x = 40,240.83
  5. Step 5: Solve for x
    x = 40,240.83/173.58
  6. Step 6: Final answer
    x = 231.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.