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Finding the Fourth Proportional to 384,073.96, 576,200.55 and 131,356.39

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Solution

The fourth proportional to 384,073.96, 576,200.55 and 131,356.39 is: 197,065.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,073.96 : 576,200.55 = 131,356.39 : x
  2. Step 2: Convert to fraction form
    384,073.96/576,200.55 = 131,356.39/x
  3. Step 3: Cross multiply
    384,073.96x = 576,200.55 × 131,356.39
  4. Step 4: Simplify right side
    384,073.96x = 75,687,624,164.01
  5. Step 5: Solve for x
    x = 75,687,624,164.01/384,073.96
  6. Step 6: Final answer
    x = 197,065.23

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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.