Home / 300,378.06-450,497.00-87,088.73

Finding the Fourth Proportional to 300,378.06, 450,497.00 and 87,088.73

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Solution

The fourth proportional to 300,378.06, 450,497.00 and 87,088.73 is: 130,612.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,378.06 : 450,497.00 = 87,088.73 : x
  2. Step 2: Convert to fraction form
    300,378.06/450,497.00 = 87,088.73/x
  3. Step 3: Cross multiply
    300,378.06x = 450,497.00 × 87,088.73
  4. Step 4: Simplify right side
    300,378.06x = 39,233,212,942.77
  5. Step 5: Solve for x
    x = 39,233,212,942.77/300,378.06
  6. Step 6: Final answer
    x = 130,612.78

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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.