Home / 226,385.72-312,403.50-125,790.20

Finding the Fourth Proportional to 226,385.72, 312,403.50 and 125,790.20

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Solution

The fourth proportional to 226,385.72, 312,403.50 and 125,790.20 is: 173,585.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,385.72 : 312,403.50 = 125,790.20 : x
  2. Step 2: Convert to fraction form
    226,385.72/312,403.50 = 125,790.20/x
  3. Step 3: Cross multiply
    226,385.72x = 312,403.50 × 125,790.20
  4. Step 4: Simplify right side
    226,385.72x = 39,297,298,745.70
  5. Step 5: Solve for x
    x = 39,297,298,745.70/226,385.72
  6. Step 6: Final answer
    x = 173,585.59

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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.