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Finding the Fourth Proportional to 376.00, 518.50 and 270.87

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Solution

The fourth proportional to 376.00, 518.50 and 270.87 is: 373.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.00 : 518.50 = 270.87 : x
  2. Step 2: Convert to fraction form
    376.00/518.50 = 270.87/x
  3. Step 3: Cross multiply
    376.00x = 518.50 × 270.87
  4. Step 4: Simplify right side
    376.00x = 140,445.95
  5. Step 5: Solve for x
    x = 140,445.95/376.00
  6. Step 6: Final answer
    x = 373.52

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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.