Home / 236,791.20-355,210.56-68,315.70

Finding the Fourth Proportional to 236,791.20, 355,210.56 and 68,315.70

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Solution

The fourth proportional to 236,791.20, 355,210.56 and 68,315.70 is: 102,480.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,791.20 : 355,210.56 = 68,315.70 : x
  2. Step 2: Convert to fraction form
    236,791.20/355,210.56 = 68,315.70/x
  3. Step 3: Cross multiply
    236,791.20x = 355,210.56 × 68,315.70
  4. Step 4: Simplify right side
    236,791.20x = 24,266,458,053.79
  5. Step 5: Solve for x
    x = 24,266,458,053.79/236,791.20
  6. Step 6: Final answer
    x = 102,480.40

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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.