Home / 280,139.30-386,956.86-226,626.14

Finding the Fourth Proportional to 280,139.30, 386,956.86 and 226,626.14

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Solution

The fourth proportional to 280,139.30, 386,956.86 and 226,626.14 is: 313,039.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,139.30 : 386,956.86 = 226,626.14 : x
  2. Step 2: Convert to fraction form
    280,139.30/386,956.86 = 226,626.14/x
  3. Step 3: Cross multiply
    280,139.30x = 386,956.86 × 226,626.14
  4. Step 4: Simplify right side
    280,139.30x = 87,694,539,528.32
  5. Step 5: Solve for x
    x = 87,694,539,528.32/280,139.30
  6. Step 6: Final answer
    x = 313,039.05

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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.