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Finding the Fourth Proportional to 433.86, 650.81 and 125.70

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Solution

The fourth proportional to 433.86, 650.81 and 125.70 is: 188.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    433.86 : 650.81 = 125.70 : x
  2. Step 2: Convert to fraction form
    433.86/650.81 = 125.70/x
  3. Step 3: Cross multiply
    433.86x = 650.81 × 125.70
  4. Step 4: Simplify right side
    433.86x = 81,806.82
  5. Step 5: Solve for x
    x = 81,806.82/433.86
  6. Step 6: Final answer
    x = 188.56

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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.