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Finding the Fourth Proportional to 239,571.84, 330,608.52 and 137,604

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Solution

The fourth proportional to 239,571.84, 330,608.52 and 137,604 is: 189,893.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,571.84 : 330,608.52 = 137,604 : x
  2. Step 2: Convert to fraction form
    239,571.84/330,608.52 = 137,604/x
  3. Step 3: Cross multiply
    239,571.84x = 330,608.52 × 137,604
  4. Step 4: Simplify right side
    239,571.84x = 45,493,054,786.08
  5. Step 5: Solve for x
    x = 45,493,054,786.08/239,571.84
  6. Step 6: Final answer
    x = 189,893.16

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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.