Home / 236,839.20-355,282.71-76,908.45

Finding the Fourth Proportional to 236,839.20, 355,282.71 and 76,908.45

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Solution

The fourth proportional to 236,839.20, 355,282.71 and 76,908.45 is: 115,370.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,839.20 : 355,282.71 = 76,908.45 : x
  2. Step 2: Convert to fraction form
    236,839.20/355,282.71 = 76,908.45/x
  3. Step 3: Cross multiply
    236,839.20x = 355,282.71 × 76,908.45
  4. Step 4: Simplify right side
    236,839.20x = 27,324,242,537.90
  5. Step 5: Solve for x
    x = 27,324,242,537.90/236,839.20
  6. Step 6: Final answer
    x = 115,370.44

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1.5x scale

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.