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Finding the Fourth Proportional to 313.28, 466.20 and 310.04

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Solution

The fourth proportional to 313.28, 466.20 and 310.04 is: 461.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    313.28 : 466.20 = 310.04 : x
  2. Step 2: Convert to fraction form
    313.28/466.20 = 310.04/x
  3. Step 3: Cross multiply
    313.28x = 466.20 × 310.04
  4. Step 4: Simplify right side
    313.28x = 144,539.48
  5. Step 5: Solve for x
    x = 144,539.48/313.28
  6. Step 6: Final answer
    x = 461.38

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.