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Finding the Fourth Proportional to 310,040.03, 427,901.99 and 189,251.34

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Solution

The fourth proportional to 310,040.03, 427,901.99 and 189,251.34 is: 261,195.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,040.03 : 427,901.99 = 189,251.34 : x
  2. Step 2: Convert to fraction form
    310,040.03/427,901.99 = 189,251.34/x
  3. Step 3: Cross multiply
    310,040.03x = 427,901.99 × 189,251.34
  4. Step 4: Simplify right side
    310,040.03x = 80,981,024,049.91
  5. Step 5: Solve for x
    x = 80,981,024,049.91/310,040.03
  6. Step 6: Final answer
    x = 261,195.39

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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.