Home / 300,787.20-451,208.64-98,384.46

Finding the Fourth Proportional to 300,787.20, 451,208.64 and 98,384.46

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Solution

The fourth proportional to 300,787.20, 451,208.64 and 98,384.46 is: 147,585.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,787.20 : 451,208.64 = 98,384.46 : x
  2. Step 2: Convert to fraction form
    300,787.20/451,208.64 = 98,384.46/x
  3. Step 3: Cross multiply
    300,787.20x = 451,208.64 × 98,384.46
  4. Step 4: Simplify right side
    300,787.20x = 44,391,916,137.69
  5. Step 5: Solve for x
    x = 44,391,916,137.69/300,787.20
  6. Step 6: Final answer
    x = 147,585.79

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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.