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Finding the Fourth Proportional to 303,984.69, 455,977.23 and 79,344.55

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Solution

The fourth proportional to 303,984.69, 455,977.23 and 79,344.55 is: 119,016.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,984.69 : 455,977.23 = 79,344.55 : x
  2. Step 2: Convert to fraction form
    303,984.69/455,977.23 = 79,344.55/x
  3. Step 3: Cross multiply
    303,984.69x = 455,977.23 × 79,344.55
  4. Step 4: Simplify right side
    303,984.69x = 36,179,308,124.60
  5. Step 5: Solve for x
    x = 36,179,308,124.60/303,984.69
  6. Step 6: Final answer
    x = 119,016.88

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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.