Home / 288,375.45-432,678.11-110,834.79

Finding the Fourth Proportional to 288,375.45, 432,678.11 and 110,834.79

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Solution

The fourth proportional to 288,375.45, 432,678.11 and 110,834.79 is: 166,296.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,375.45 : 432,678.11 = 110,834.79 : x
  2. Step 2: Convert to fraction form
    288,375.45/432,678.11 = 110,834.79/x
  3. Step 3: Cross multiply
    288,375.45x = 432,678.11 × 110,834.79
  4. Step 4: Simplify right side
    288,375.45x = 47,955,786,905.27
  5. Step 5: Solve for x
    x = 47,955,786,905.27/288,375.45
  6. Step 6: Final answer
    x = 166,296.36

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1.5x scale

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.