Home / 280,059.17-386,466.31-159,183.69

Finding the Fourth Proportional to 280,059.17, 386,466.31 and 159,183.69

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Solution

The fourth proportional to 280,059.17, 386,466.31 and 159,183.69 is: 219,664.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,059.17 : 386,466.31 = 159,183.69 : x
  2. Step 2: Convert to fraction form
    280,059.17/386,466.31 = 159,183.69/x
  3. Step 3: Cross multiply
    280,059.17x = 386,466.31 × 159,183.69
  4. Step 4: Simplify right side
    280,059.17x = 61,519,132,490.57
  5. Step 5: Solve for x
    x = 61,519,132,490.57/280,059.17
  6. Step 6: Final answer
    x = 219,664.77

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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.