Home / 268,289.90-402,447.06-189,754.73

Finding the Fourth Proportional to 268,289.90, 402,447.06 and 189,754.73

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Solution

The fourth proportional to 268,289.90, 402,447.06 and 189,754.73 is: 284,640.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,289.90 : 402,447.06 = 189,754.73 : x
  2. Step 2: Convert to fraction form
    268,289.90/402,447.06 = 189,754.73/x
  3. Step 3: Cross multiply
    268,289.90x = 402,447.06 × 189,754.73
  4. Step 4: Simplify right side
    268,289.90x = 76,366,231,197.36
  5. Step 5: Solve for x
    x = 76,366,231,197.36/268,289.90
  6. Step 6: Final answer
    x = 284,640.73

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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.