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Finding the Fourth Proportional to 245,986.50, 368,973.26 and 68,486.34

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Solution

The fourth proportional to 245,986.50, 368,973.26 and 68,486.34 is: 102,727.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,986.50 : 368,973.26 = 68,486.34 : x
  2. Step 2: Convert to fraction form
    245,986.50/368,973.26 = 68,486.34/x
  3. Step 3: Cross multiply
    245,986.50x = 368,973.26 × 68,486.34
  4. Step 4: Simplify right side
    245,986.50x = 25,269,628,135.27
  5. Step 5: Solve for x
    x = 25,269,628,135.27/245,986.50
  6. Step 6: Final answer
    x = 102,727.70

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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.