Home / 236,836.58-355,278.78-76,905.81

Finding the Fourth Proportional to 236,836.58, 355,278.78 and 76,905.81

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Solution

The fourth proportional to 236,836.58, 355,278.78 and 76,905.81 is: 115,366.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,836.58 : 355,278.78 = 76,905.81 : x
  2. Step 2: Convert to fraction form
    236,836.58/355,278.78 = 76,905.81/x
  3. Step 3: Cross multiply
    236,836.58x = 355,278.78 × 76,905.81
  4. Step 4: Simplify right side
    236,836.58x = 27,323,002,351.71
  5. Step 5: Solve for x
    x = 27,323,002,351.71/236,836.58
  6. Step 6: Final answer
    x = 115,366.48

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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.