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Finding the Fourth Proportional to 310.12, 427.94 and 184.12

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Solution

The fourth proportional to 310.12, 427.94 and 184.12 is: 254.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    310.12 : 427.94 = 184.12 : x
  2. Step 2: Convert to fraction form
    310.12/427.94 = 184.12/x
  3. Step 3: Cross multiply
    310.12x = 427.94 × 184.12
  4. Step 4: Simplify right side
    310.12x = 78,792.31
  5. Step 5: Solve for x
    x = 78,792.31/310.12
  6. Step 6: Final answer
    x = 254.07

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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.