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Finding the Fourth Proportional to 315.03, 472.26 and 119.89

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Solution

The fourth proportional to 315.03, 472.26 and 119.89 is: 179.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    315.03 : 472.26 = 119.89 : x
  2. Step 2: Convert to fraction form
    315.03/472.26 = 119.89/x
  3. Step 3: Cross multiply
    315.03x = 472.26 × 119.89
  4. Step 4: Simplify right side
    315.03x = 56,619.25
  5. Step 5: Solve for x
    x = 56,619.25/315.03
  6. Step 6: Final answer
    x = 179.73

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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.