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Finding the Fourth Proportional to 276.03, 415.69 and 230.67

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Solution

The fourth proportional to 276.03, 415.69 and 230.67 is: 347.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.03 : 415.69 = 230.67 : x
  2. Step 2: Convert to fraction form
    276.03/415.69 = 230.67/x
  3. Step 3: Cross multiply
    276.03x = 415.69 × 230.67
  4. Step 4: Simplify right side
    276.03x = 95,886.64
  5. Step 5: Solve for x
    x = 95,886.64/276.03
  6. Step 6: Final answer
    x = 347.38

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.