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Finding the Fourth Proportional to 950.01, 1,311.09 and 551.82

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Solution

The fourth proportional to 950.01, 1,311.09 and 551.82 is: 761.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    950.01 : 1,311.09 = 551.82 : x
  2. Step 2: Convert to fraction form
    950.01/1,311.09 = 551.82/x
  3. Step 3: Cross multiply
    950.01x = 1,311.09 × 551.82
  4. Step 4: Simplify right side
    950.01x = 723,485.68
  5. Step 5: Solve for x
    x = 723,485.68/950.01
  6. Step 6: Final answer
    x = 761.56

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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.