Home / 394,156.13-543,936.06-224,390.25

Finding the Fourth Proportional to 394,156.13, 543,936.06 and 224,390.25

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Solution

The fourth proportional to 394,156.13, 543,936.06 and 224,390.25 is: 309,658.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,156.13 : 543,936.06 = 224,390.25 : x
  2. Step 2: Convert to fraction form
    394,156.13/543,936.06 = 224,390.25/x
  3. Step 3: Cross multiply
    394,156.13x = 543,936.06 × 224,390.25
  4. Step 4: Simplify right side
    394,156.13x = 122,053,948,487.42
  5. Step 5: Solve for x
    x = 122,053,948,487.42/394,156.13
  6. Step 6: Final answer
    x = 309,658.89

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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.