Home / 307,501.20-423,721.80-226,800.90

Finding the Fourth Proportional to 307,501.20, 423,721.80 and 226,800.90

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Solution

The fourth proportional to 307,501.20, 423,721.80 and 226,800.90 is: 312,520.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,501.20 : 423,721.80 = 226,800.90 : x
  2. Step 2: Convert to fraction form
    307,501.20/423,721.80 = 226,800.90/x
  3. Step 3: Cross multiply
    307,501.20x = 423,721.80 × 226,800.90
  4. Step 4: Simplify right side
    307,501.20x = 96,100,485,589.62
  5. Step 5: Solve for x
    x = 96,100,485,589.62/307,501.20
  6. Step 6: Final answer
    x = 312,520.68

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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.