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Finding the Fourth Proportional to 481,184, 664,033.92 and 280,113.92

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Solution

The fourth proportional to 481,184, 664,033.92 and 280,113.92 is: 386,557.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,184 : 664,033.92 = 280,113.92 : x
  2. Step 2: Convert to fraction form
    481,184/664,033.92 = 280,113.92/x
  3. Step 3: Cross multiply
    481,184x = 664,033.92 × 280,113.92
  4. Step 4: Simplify right side
    481,184x = 186,005,144,344.17
  5. Step 5: Solve for x
    x = 186,005,144,344.17/481,184
  6. Step 6: Final answer
    x = 386,557.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.