Home / 280,233.06-386,721.63-179,631.06

Finding the Fourth Proportional to 280,233.06, 386,721.63 and 179,631.06

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Solution

The fourth proportional to 280,233.06, 386,721.63 and 179,631.06 is: 247,890.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,233.06 : 386,721.63 = 179,631.06 : x
  2. Step 2: Convert to fraction form
    280,233.06/386,721.63 = 179,631.06/x
  3. Step 3: Cross multiply
    280,233.06x = 386,721.63 × 179,631.06
  4. Step 4: Simplify right side
    280,233.06x = 69,467,216,321.83
  5. Step 5: Solve for x
    x = 69,467,216,321.83/280,233.06
  6. Step 6: Final answer
    x = 247,890.87

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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.