Home / 226,445.88-312,511.64-135,800.20

Finding the Fourth Proportional to 226,445.88, 312,511.64 and 135,800.20

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Solution

The fourth proportional to 226,445.88, 312,511.64 and 135,800.20 is: 187,414.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,445.88 : 312,511.64 = 135,800.20 : x
  2. Step 2: Convert to fraction form
    226,445.88/312,511.64 = 135,800.20/x
  3. Step 3: Cross multiply
    226,445.88x = 312,511.64 × 135,800.20
  4. Step 4: Simplify right side
    226,445.88x = 42,439,143,214.33
  5. Step 5: Solve for x
    x = 42,439,143,214.33/226,445.88
  6. Step 6: Final answer
    x = 187,414.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.