Home / 280,350.28-386,883.42-153,025.88

Finding the Fourth Proportional to 280,350.28, 386,883.42 and 153,025.88

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Solution

The fourth proportional to 280,350.28, 386,883.42 and 153,025.88 is: 211,175.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,350.28 : 386,883.42 = 153,025.88 : x
  2. Step 2: Convert to fraction form
    280,350.28/386,883.42 = 153,025.88/x
  3. Step 3: Cross multiply
    280,350.28x = 386,883.42 × 153,025.88
  4. Step 4: Simplify right side
    280,350.28x = 59,203,175,802.91
  5. Step 5: Solve for x
    x = 59,203,175,802.91/280,350.28
  6. Step 6: Final answer
    x = 211,175.74

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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.