Home / 394,742.88-544,748.42-217,938.98

Finding the Fourth Proportional to 394,742.88, 544,748.42 and 217,938.98

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Solution

The fourth proportional to 394,742.88, 544,748.42 and 217,938.98 is: 300,757.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,742.88 : 544,748.42 = 217,938.98 : x
  2. Step 2: Convert to fraction form
    394,742.88/544,748.42 = 217,938.98/x
  3. Step 3: Cross multiply
    394,742.88x = 544,748.42 × 217,938.98
  4. Step 4: Simplify right side
    394,742.88x = 118,721,915,011.41
  5. Step 5: Solve for x
    x = 118,721,915,011.41/394,742.88
  6. Step 6: Final answer
    x = 300,757.58

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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.