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Finding the Fourth Proportional to 239,751.57, 330,747.51 and 139,091.25

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Solution

The fourth proportional to 239,751.57, 330,747.51 and 139,091.25 is: 191,882.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,751.57 : 330,747.51 = 139,091.25 : x
  2. Step 2: Convert to fraction form
    239,751.57/330,747.51 = 139,091.25/x
  3. Step 3: Cross multiply
    239,751.57x = 330,747.51 × 139,091.25
  4. Step 4: Simplify right side
    239,751.57x = 46,004,084,600.29
  5. Step 5: Solve for x
    x = 46,004,084,600.29/239,751.57
  6. Step 6: Final answer
    x = 191,882.31

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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.