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Finding the Fourth Proportional to 370.73, 511.90 and 277.88

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Solution

The fourth proportional to 370.73, 511.90 and 277.88 is: 383.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.73 : 511.90 = 277.88 : x
  2. Step 2: Convert to fraction form
    370.73/511.90 = 277.88/x
  3. Step 3: Cross multiply
    370.73x = 511.90 × 277.88
  4. Step 4: Simplify right side
    370.73x = 142,243.52
  5. Step 5: Solve for x
    x = 142,243.52/370.73
  6. Step 6: Final answer
    x = 383.68

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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.