Home / 280,188.12-386,659.70-179,586.12

Finding the Fourth Proportional to 280,188.12, 386,659.70 and 179,586.12

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Solution

The fourth proportional to 280,188.12, 386,659.70 and 179,586.12 is: 247,828.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,188.12 : 386,659.70 = 179,586.12 : x
  2. Step 2: Convert to fraction form
    280,188.12/386,659.70 = 179,586.12/x
  3. Step 3: Cross multiply
    280,188.12x = 386,659.70 × 179,586.12
  4. Step 4: Simplify right side
    280,188.12x = 69,438,715,283.36
  5. Step 5: Solve for x
    x = 69,438,715,283.36/280,188.12
  6. Step 6: Final answer
    x = 247,828.91

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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.