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Finding the Fourth Proportional to 174.04, 259.78 and 155.77

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Solution

The fourth proportional to 174.04, 259.78 and 155.77 is: 232.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.04 : 259.78 = 155.77 : x
  2. Step 2: Convert to fraction form
    174.04/259.78 = 155.77/x
  3. Step 3: Cross multiply
    174.04x = 259.78 × 155.77
  4. Step 4: Simplify right side
    174.04x = 40,465.93
  5. Step 5: Solve for x
    x = 40,465.93/174.04
  6. Step 6: Final answer
    x = 232.51

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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.