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Finding the Fourth Proportional to 392,293.49, 588,440.22 and 111,803.45

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Solution

The fourth proportional to 392,293.49, 588,440.22 and 111,803.45 is: 167,705.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,293.49 : 588,440.22 = 111,803.45 : x
  2. Step 2: Convert to fraction form
    392,293.49/588,440.22 = 111,803.45/x
  3. Step 3: Cross multiply
    392,293.49x = 588,440.22 × 111,803.45
  4. Step 4: Simplify right side
    392,293.49x = 65,789,643,772.56
  5. Step 5: Solve for x
    x = 65,789,643,772.56/392,293.49
  6. Step 6: Final answer
    x = 167,705.17

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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.