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Finding the Fourth Proportional to 247,670.77, 341,786.97 and 140,261.71

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Solution

The fourth proportional to 247,670.77, 341,786.97 and 140,261.71 is: 193,561.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,670.77 : 341,786.97 = 140,261.71 : x
  2. Step 2: Convert to fraction form
    247,670.77/341,786.97 = 140,261.71/x
  3. Step 3: Cross multiply
    247,670.77x = 341,786.97 × 140,261.71
  4. Step 4: Simplify right side
    247,670.77x = 47,939,622,457.68
  5. Step 5: Solve for x
    x = 47,939,622,457.68/247,670.77
  6. Step 6: Final answer
    x = 193,561.89

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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.