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Finding the Fourth Proportional to 262,939.48, 394,409.22 and 240,129.88

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Solution

The fourth proportional to 262,939.48, 394,409.22 and 240,129.88 is: 360,194.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,939.48 : 394,409.22 = 240,129.88 : x
  2. Step 2: Convert to fraction form
    262,939.48/394,409.22 = 240,129.88/x
  3. Step 3: Cross multiply
    262,939.48x = 394,409.22 × 240,129.88
  4. Step 4: Simplify right side
    262,939.48x = 94,709,438,669.49
  5. Step 5: Solve for x
    x = 94,709,438,669.49/262,939.48
  6. Step 6: Final answer
    x = 360,194.82

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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.