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Finding the Fourth Proportional to 394,606.56, 591,851.28 and 145,230.24

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Solution

The fourth proportional to 394,606.56, 591,851.28 and 145,230.24 is: 217,823.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,606.56 : 591,851.28 = 145,230.24 : x
  2. Step 2: Convert to fraction form
    394,606.56/591,851.28 = 145,230.24/x
  3. Step 3: Cross multiply
    394,606.56x = 591,851.28 × 145,230.24
  4. Step 4: Simplify right side
    394,606.56x = 85,954,703,438.71
  5. Step 5: Solve for x
    x = 85,954,703,438.71/394,606.56
  6. Step 6: Final answer
    x = 217,823.81

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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.