Home / 226,778.37-340,278.21-142,578.12

Finding the Fourth Proportional to 226,778.37, 340,278.21 and 142,578.12

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Solution

The fourth proportional to 226,778.37, 340,278.21 and 142,578.12 is: 213,936.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,778.37 : 340,278.21 = 142,578.12 : x
  2. Step 2: Convert to fraction form
    226,778.37/340,278.21 = 142,578.12/x
  3. Step 3: Cross multiply
    226,778.37x = 340,278.21 × 142,578.12
  4. Step 4: Simplify right side
    226,778.37x = 48,516,227,458.77
  5. Step 5: Solve for x
    x = 48,516,227,458.77/226,778.37
  6. Step 6: Final answer
    x = 213,936.75

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1.5x scale

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.