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Finding the Fourth Proportional to 373.93, 561.09 and 178.90

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Solution

The fourth proportional to 373.93, 561.09 and 178.90 is: 268.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.93 : 561.09 = 178.90 : x
  2. Step 2: Convert to fraction form
    373.93/561.09 = 178.90/x
  3. Step 3: Cross multiply
    373.93x = 561.09 × 178.90
  4. Step 4: Simplify right side
    373.93x = 100,379.00
  5. Step 5: Solve for x
    x = 100,379.00/373.93
  6. Step 6: Final answer
    x = 268.44

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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.