Home / 268,990.20-403,538.46-79,453.86

Finding the Fourth Proportional to 268,990.20, 403,538.46 and 79,453.86

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Solution

The fourth proportional to 268,990.20, 403,538.46 and 79,453.86 is: 119,196.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,990.20 : 403,538.46 = 79,453.86 : x
  2. Step 2: Convert to fraction form
    268,990.20/403,538.46 = 79,453.86/x
  3. Step 3: Cross multiply
    268,990.20x = 403,538.46 × 79,453.86
  4. Step 4: Simplify right side
    268,990.20x = 32,062,688,305.46
  5. Step 5: Solve for x
    x = 32,062,688,305.46/268,990.20
  6. Step 6: Final answer
    x = 119,196.49

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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.