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Finding the Fourth Proportional to 394,280.16, 591,469.44 and 154,363.08

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Solution

The fourth proportional to 394,280.16, 591,469.44 and 154,363.08 is: 231,563.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,280.16 : 591,469.44 = 154,363.08 : x
  2. Step 2: Convert to fraction form
    394,280.16/591,469.44 = 154,363.08/x
  3. Step 3: Cross multiply
    394,280.16x = 591,469.44 × 154,363.08
  4. Step 4: Simplify right side
    394,280.16x = 91,301,044,484.28
  5. Step 5: Solve for x
    x = 91,301,044,484.28/394,280.16
  6. Step 6: Final answer
    x = 231,563.88

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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.