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Finding the Fourth Proportional to 483.06, 666.56 and 276.06

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Solution

The fourth proportional to 483.06, 666.56 and 276.06 is: 380.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.06 : 666.56 = 276.06 : x
  2. Step 2: Convert to fraction form
    483.06/666.56 = 276.06/x
  3. Step 3: Cross multiply
    483.06x = 666.56 × 276.06
  4. Step 4: Simplify right side
    483.06x = 184,010.55
  5. Step 5: Solve for x
    x = 184,010.55/483.06
  6. Step 6: Final answer
    x = 380.93

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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.