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Finding the Fourth Proportional to 276,903.56, 382,127.09 and 149,579.19

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Solution

The fourth proportional to 276,903.56, 382,127.09 and 149,579.19 is: 206,419.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,903.56 : 382,127.09 = 149,579.19 : x
  2. Step 2: Convert to fraction form
    276,903.56/382,127.09 = 149,579.19/x
  3. Step 3: Cross multiply
    276,903.56x = 382,127.09 × 149,579.19
  4. Step 4: Simplify right side
    276,903.56x = 57,158,259,851.36
  5. Step 5: Solve for x
    x = 57,158,259,851.36/276,903.56
  6. Step 6: Final answer
    x = 206,419.37

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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.