Home / 236,814.76-355,278.15-76,890.38

Finding the Fourth Proportional to 236,814.76, 355,278.15 and 76,890.38

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Solution

The fourth proportional to 236,814.76, 355,278.15 and 76,890.38 is: 115,353.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,814.76 : 355,278.15 = 76,890.38 : x
  2. Step 2: Convert to fraction form
    236,814.76/355,278.15 = 76,890.38/x
  3. Step 3: Cross multiply
    236,814.76x = 355,278.15 × 76,890.38
  4. Step 4: Simplify right side
    236,814.76x = 27,317,471,959.20
  5. Step 5: Solve for x
    x = 27,317,471,959.20/236,814.76
  6. Step 6: Final answer
    x = 115,353.76

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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.