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Finding the Fourth Proportional to 376.02, 565.15 and 311.44

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Solution

The fourth proportional to 376.02, 565.15 and 311.44 is: 468.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.02 : 565.15 = 311.44 : x
  2. Step 2: Convert to fraction form
    376.02/565.15 = 311.44/x
  3. Step 3: Cross multiply
    376.02x = 565.15 × 311.44
  4. Step 4: Simplify right side
    376.02x = 176,006.71
  5. Step 5: Solve for x
    x = 176,006.71/376.02
  6. Step 6: Final answer
    x = 468.08

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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.