Home / 280,084.64-386,450.33-159,216.37

Finding the Fourth Proportional to 280,084.64, 386,450.33 and 159,216.37

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Solution

The fourth proportional to 280,084.64, 386,450.33 and 159,216.37 is: 219,680.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,084.64 : 386,450.33 = 159,216.37 : x
  2. Step 2: Convert to fraction form
    280,084.64/386,450.33 = 159,216.37/x
  3. Step 3: Cross multiply
    280,084.64x = 386,450.33 × 159,216.37
  4. Step 4: Simplify right side
    280,084.64x = 61,529,216,965.69
  5. Step 5: Solve for x
    x = 61,529,216,965.69/280,084.64
  6. Step 6: Final answer
    x = 219,680.80

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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.