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Finding the Fourth Proportional to 245,725.80, 368,588.82 and 68,232.78

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Solution

The fourth proportional to 245,725.80, 368,588.82 and 68,232.78 is: 102,349.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,725.80 : 368,588.82 = 68,232.78 : x
  2. Step 2: Convert to fraction form
    245,725.80/368,588.82 = 68,232.78/x
  3. Step 3: Cross multiply
    245,725.80x = 368,588.82 × 68,232.78
  4. Step 4: Simplify right side
    245,725.80x = 25,149,839,865.52
  5. Step 5: Solve for x
    x = 25,149,839,865.52/245,725.80
  6. Step 6: Final answer
    x = 102,349.20

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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.