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Finding the Fourth Proportional to 310.50, 465.75 and 94.10

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Solution

The fourth proportional to 310.50, 465.75 and 94.10 is: 141.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    310.50 : 465.75 = 94.10 : x
  2. Step 2: Convert to fraction form
    310.50/465.75 = 94.10/x
  3. Step 3: Cross multiply
    310.50x = 465.75 × 94.10
  4. Step 4: Simplify right side
    310.50x = 43,824.75
  5. Step 5: Solve for x
    x = 43,824.75/310.50
  6. Step 6: Final answer
    x = 141.14

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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.