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Finding the Fourth Proportional to 591, 886.51 and 266.15

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Solution

The fourth proportional to 591, 886.51 and 266.15 is: 399.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    591 : 886.51 = 266.15 : x
  2. Step 2: Convert to fraction form
    591/886.51 = 266.15/x
  3. Step 3: Cross multiply
    591x = 886.51 × 266.15
  4. Step 4: Simplify right side
    591x = 235,940.20
  5. Step 5: Solve for x
    x = 235,940.20/591
  6. Step 6: Final answer
    x = 399.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.