Home / 289,021.70-433,524.45-131,249.90

Finding the Fourth Proportional to 289,021.70, 433,524.45 and 131,249.90

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Solution

The fourth proportional to 289,021.70, 433,524.45 and 131,249.90 is: 196,871.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,021.70 : 433,524.45 = 131,249.90 : x
  2. Step 2: Convert to fraction form
    289,021.70/433,524.45 = 131,249.90/x
  3. Step 3: Cross multiply
    289,021.70x = 433,524.45 × 131,249.90
  4. Step 4: Simplify right side
    289,021.70x = 56,900,040,710.06
  5. Step 5: Solve for x
    x = 56,900,040,710.06/289,021.70
  6. Step 6: Final answer
    x = 196,871.17

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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.