Home / 226,438.20-339,657.30-128,134.20

Finding the Fourth Proportional to 226,438.20, 339,657.30 and 128,134.20

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Solution

The fourth proportional to 226,438.20, 339,657.30 and 128,134.20 is: 192,201.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,438.20 : 339,657.30 = 128,134.20 : x
  2. Step 2: Convert to fraction form
    226,438.20/339,657.30 = 128,134.20/x
  3. Step 3: Cross multiply
    226,438.20x = 339,657.30 × 128,134.20
  4. Step 4: Simplify right side
    226,438.20x = 43,521,716,409.66
  5. Step 5: Solve for x
    x = 43,521,716,409.66/226,438.20
  6. Step 6: Final answer
    x = 192,201.30

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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.