Home / 262,839.36-394,176.32-85,305.36

Finding the Fourth Proportional to 262,839.36, 394,176.32 and 85,305.36

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Solution

The fourth proportional to 262,839.36, 394,176.32 and 85,305.36 is: 127,931.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,839.36 : 394,176.32 = 85,305.36 : x
  2. Step 2: Convert to fraction form
    262,839.36/394,176.32 = 85,305.36/x
  3. Step 3: Cross multiply
    262,839.36x = 394,176.32 × 85,305.36
  4. Step 4: Simplify right side
    262,839.36x = 33,625,352,881.08
  5. Step 5: Solve for x
    x = 33,625,352,881.08/262,839.36
  6. Step 6: Final answer
    x = 127,931.19

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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.