Home / 276,912.64-382,139.43-149,588.23

Finding the Fourth Proportional to 276,912.64, 382,139.43 and 149,588.23

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Solution

The fourth proportional to 276,912.64, 382,139.43 and 149,588.23 is: 206,431.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,912.64 : 382,139.43 = 149,588.23 : x
  2. Step 2: Convert to fraction form
    276,912.64/382,139.43 = 149,588.23/x
  3. Step 3: Cross multiply
    276,912.64x = 382,139.43 × 149,588.23
  4. Step 4: Simplify right side
    276,912.64x = 57,163,560,946.91
  5. Step 5: Solve for x
    x = 57,163,560,946.91/276,912.64
  6. Step 6: Final answer
    x = 206,431.75

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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.