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Finding the Fourth Proportional to 376.85, 566.40 and 312.27

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Solution

The fourth proportional to 376.85, 566.40 and 312.27 is: 469.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.85 : 566.40 = 312.27 : x
  2. Step 2: Convert to fraction form
    376.85/566.40 = 312.27/x
  3. Step 3: Cross multiply
    376.85x = 566.40 × 312.27
  4. Step 4: Simplify right side
    376.85x = 176,869.73
  5. Step 5: Solve for x
    x = 176,869.73/376.85
  6. Step 6: Final answer
    x = 469.34

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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.