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Finding the Fourth Proportional to 392,300.36, 588,450.55 and 111,810.32

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Solution

The fourth proportional to 392,300.36, 588,450.55 and 111,810.32 is: 167,715.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,300.36 : 588,450.55 = 111,810.32 : x
  2. Step 2: Convert to fraction form
    392,300.36/588,450.55 = 111,810.32/x
  3. Step 3: Cross multiply
    392,300.36x = 588,450.55 × 111,810.32
  4. Step 4: Simplify right side
    392,300.36x = 65,794,844,299.68
  5. Step 5: Solve for x
    x = 65,794,844,299.68/392,300.36
  6. Step 6: Final answer
    x = 167,715.48

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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.