Home / 394,401.10-591,863.70-145,083.10

Finding the Fourth Proportional to 394,401.10, 591,863.70 and 145,083.10

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Solution

The fourth proportional to 394,401.10, 591,863.70 and 145,083.10 is: 217,721.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,401.10 : 591,863.70 = 145,083.10 : x
  2. Step 2: Convert to fraction form
    394,401.10/591,863.70 = 145,083.10/x
  3. Step 3: Cross multiply
    394,401.10x = 591,863.70 × 145,083.10
  4. Step 4: Simplify right side
    394,401.10x = 85,869,420,373.47
  5. Step 5: Solve for x
    x = 85,869,420,373.47/394,401.10
  6. Step 6: Final answer
    x = 217,721.05

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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.