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Finding the Fourth Proportional to 433.99, 651.02 and 125.89

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Solution

The fourth proportional to 433.99, 651.02 and 125.89 is: 188.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    433.99 : 651.02 = 125.89 : x
  2. Step 2: Convert to fraction form
    433.99/651.02 = 125.89/x
  3. Step 3: Cross multiply
    433.99x = 651.02 × 125.89
  4. Step 4: Simplify right side
    433.99x = 81,956.91
  5. Step 5: Solve for x
    x = 81,956.91/433.99
  6. Step 6: Final answer
    x = 188.85

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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.