Home / 236,814.78-355,277.98-76,878.38

Finding the Fourth Proportional to 236,814.78, 355,277.98 and 76,878.38

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Solution

The fourth proportional to 236,814.78, 355,277.98 and 76,878.38 is: 115,335.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,814.78 : 355,277.98 = 76,878.38 : x
  2. Step 2: Convert to fraction form
    236,814.78/355,277.98 = 76,878.38/x
  3. Step 3: Cross multiply
    236,814.78x = 355,277.98 × 76,878.38
  4. Step 4: Simplify right side
    236,814.78x = 27,313,195,552.07
  5. Step 5: Solve for x
    x = 27,313,195,552.07/236,814.78
  6. Step 6: Final answer
    x = 115,335.69

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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.