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Finding the Fourth Proportional to 276,144.88, 414,218.40 and 84,021.22

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Solution

The fourth proportional to 276,144.88, 414,218.40 and 84,021.22 is: 126,032.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,144.88 : 414,218.40 = 84,021.22 : x
  2. Step 2: Convert to fraction form
    276,144.88/414,218.40 = 84,021.22/x
  3. Step 3: Cross multiply
    276,144.88x = 414,218.40 × 84,021.22
  4. Step 4: Simplify right side
    276,144.88x = 34,803,135,314.45
  5. Step 5: Solve for x
    x = 34,803,135,314.45/276,144.88
  6. Step 6: Final answer
    x = 126,032.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.