Home / 288,421.85-432,029.32-231,956.75

Finding the Fourth Proportional to 288,421.85, 432,029.32 and 231,956.75

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Solution

The fourth proportional to 288,421.85, 432,029.32 and 231,956.75 is: 347,449.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,421.85 : 432,029.32 = 231,956.75 : x
  2. Step 2: Convert to fraction form
    288,421.85/432,029.32 = 231,956.75/x
  3. Step 3: Cross multiply
    288,421.85x = 432,029.32 × 231,956.75
  4. Step 4: Simplify right side
    288,421.85x = 100,212,114,231.87
  5. Step 5: Solve for x
    x = 100,212,114,231.87/288,421.85
  6. Step 6: Final answer
    x = 347,449.81

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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.