Home / 321,811.32-482,760.82-186,938.68

Finding the Fourth Proportional to 321,811.32, 482,760.82 and 186,938.68

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Solution

The fourth proportional to 321,811.32, 482,760.82 and 186,938.68 is: 280,433.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,811.32 : 482,760.82 = 186,938.68 : x
  2. Step 2: Convert to fraction form
    321,811.32/482,760.82 = 186,938.68/x
  3. Step 3: Cross multiply
    321,811.32x = 482,760.82 × 186,938.68
  4. Step 4: Simplify right side
    321,811.32x = 90,246,670,446.52
  5. Step 5: Solve for x
    x = 90,246,670,446.52/321,811.32
  6. Step 6: Final answer
    x = 280,433.49

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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.