Home / 236,864.27-355,352.18-76,939.70

Finding the Fourth Proportional to 236,864.27, 355,352.18 and 76,939.70

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Solution

The fourth proportional to 236,864.27, 355,352.18 and 76,939.70 is: 115,427.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,864.27 : 355,352.18 = 76,939.70 : x
  2. Step 2: Convert to fraction form
    236,864.27/355,352.18 = 76,939.70/x
  3. Step 3: Cross multiply
    236,864.27x = 355,352.18 × 76,939.70
  4. Step 4: Simplify right side
    236,864.27x = 27,340,689,960.94
  5. Step 5: Solve for x
    x = 27,340,689,960.94/236,864.27
  6. Step 6: Final answer
    x = 115,427.67

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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.