Home / 289,105.08-433,581-131,298.42

Finding the Fourth Proportional to 289,105.08, 433,581 and 131,298.42

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Solution

The fourth proportional to 289,105.08, 433,581 and 131,298.42 is: 196,912.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,105.08 : 433,581 = 131,298.42 : x
  2. Step 2: Convert to fraction form
    289,105.08/433,581 = 131,298.42/x
  3. Step 3: Cross multiply
    289,105.08x = 433,581 × 131,298.42
  4. Step 4: Simplify right side
    289,105.08x = 56,928,500,242.02
  5. Step 5: Solve for x
    x = 56,928,500,242.02/289,105.08
  6. Step 6: Final answer
    x = 196,912.83

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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.