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Finding the Fourth Proportional to 315.67, 435.63 and 184.66

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Solution

The fourth proportional to 315.67, 435.63 and 184.66 is: 254.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    315.67 : 435.63 = 184.66 : x
  2. Step 2: Convert to fraction form
    315.67/435.63 = 184.66/x
  3. Step 3: Cross multiply
    315.67x = 435.63 × 184.66
  4. Step 4: Simplify right side
    315.67x = 80,443.44
  5. Step 5: Solve for x
    x = 80,443.44/315.67
  6. Step 6: Final answer
    x = 254.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.