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Finding the Fourth Proportional to 626.10, 936.15 and 535.86

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Solution

The fourth proportional to 626.10, 936.15 and 535.86 is: 801.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.10 : 936.15 = 535.86 : x
  2. Step 2: Convert to fraction form
    626.10/936.15 = 535.86/x
  3. Step 3: Cross multiply
    626.10x = 936.15 × 535.86
  4. Step 4: Simplify right side
    626.10x = 501,645.34
  5. Step 5: Solve for x
    x = 501,645.34/626.10
  6. Step 6: Final answer
    x = 801.22

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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.