Home / 394,160.50-543,941.35-212,872.46

Finding the Fourth Proportional to 394,160.50, 543,941.35 and 212,872.46

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Solution

The fourth proportional to 394,160.50, 543,941.35 and 212,872.46 is: 293,763.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,160.50 : 543,941.35 = 212,872.46 : x
  2. Step 2: Convert to fraction form
    394,160.50/543,941.35 = 212,872.46/x
  3. Step 3: Cross multiply
    394,160.50x = 543,941.35 × 212,872.46
  4. Step 4: Simplify right side
    394,160.50x = 115,790,134,097.89
  5. Step 5: Solve for x
    x = 115,790,134,097.89/394,160.50
  6. Step 6: Final answer
    x = 293,763.92

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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.