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Finding the Fourth Proportional to 426,223.34, 638,800.41 and 226,049.66

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Solution

The fourth proportional to 426,223.34, 638,800.41 and 226,049.66 is: 338,790.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,223.34 : 638,800.41 = 226,049.66 : x
  2. Step 2: Convert to fraction form
    426,223.34/638,800.41 = 226,049.66/x
  3. Step 3: Cross multiply
    426,223.34x = 638,800.41 × 226,049.66
  4. Step 4: Simplify right side
    426,223.34x = 144,400,615,488.36
  5. Step 5: Solve for x
    x = 144,400,615,488.36/426,223.34
  6. Step 6: Final answer
    x = 338,790.96

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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.