Home / 288,629.86-432,471.49-203,976.57

Finding the Fourth Proportional to 288,629.86, 432,471.49 and 203,976.57

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Solution

The fourth proportional to 288,629.86, 432,471.49 and 203,976.57 is: 305,630.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,629.86 : 432,471.49 = 203,976.57 : x
  2. Step 2: Convert to fraction form
    288,629.86/432,471.49 = 203,976.57/x
  3. Step 3: Cross multiply
    288,629.86x = 432,471.49 × 203,976.57
  4. Step 4: Simplify right side
    288,629.86x = 88,214,051,152.99
  5. Step 5: Solve for x
    x = 88,214,051,152.99/288,629.86
  6. Step 6: Final answer
    x = 305,630.37

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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.