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Finding the Fourth Proportional to 394,476.50, 591,711.10 and 169,995.53

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Solution

The fourth proportional to 394,476.50, 591,711.10 and 169,995.53 is: 254,991.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,476.50 : 591,711.10 = 169,995.53 : x
  2. Step 2: Convert to fraction form
    394,476.50/591,711.10 = 169,995.53/x
  3. Step 3: Cross multiply
    394,476.50x = 591,711.10 × 169,995.53
  4. Step 4: Simplify right side
    394,476.50x = 100,588,238,667.84
  5. Step 5: Solve for x
    x = 100,588,238,667.84/394,476.50
  6. Step 6: Final answer
    x = 254,991.72

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1.5x scale

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.