Home / 276,256.94-381,286.90-172,939.23

Finding the Fourth Proportional to 276,256.94, 381,286.90 and 172,939.23

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Solution

The fourth proportional to 276,256.94, 381,286.90 and 172,939.23 is: 238,688.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,256.94 : 381,286.90 = 172,939.23 : x
  2. Step 2: Convert to fraction form
    276,256.94/381,286.90 = 172,939.23/x
  3. Step 3: Cross multiply
    276,256.94x = 381,286.90 × 172,939.23
  4. Step 4: Simplify right side
    276,256.94x = 65,939,461,066.11
  5. Step 5: Solve for x
    x = 65,939,461,066.11/276,256.94
  6. Step 6: Final answer
    x = 238,688.88

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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.