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Finding the Fourth Proportional to 276,817.70, 382,008.35 and 149,493.30

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Solution

The fourth proportional to 276,817.70, 382,008.35 and 149,493.30 is: 206,300.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,817.70 : 382,008.35 = 149,493.30 : x
  2. Step 2: Convert to fraction form
    276,817.70/382,008.35 = 149,493.30/x
  3. Step 3: Cross multiply
    276,817.70x = 382,008.35 × 149,493.30
  4. Step 4: Simplify right side
    276,817.70x = 57,107,687,810.26
  5. Step 5: Solve for x
    x = 57,107,687,810.26/276,817.70
  6. Step 6: Final answer
    x = 206,300.71

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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.