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Finding the Fourth Proportional to 382,571.30, 528,049.77 and 269,444.90

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Solution

The fourth proportional to 382,571.30, 528,049.77 and 269,444.90 is: 371,905.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,571.30 : 528,049.77 = 269,444.90 : x
  2. Step 2: Convert to fraction form
    382,571.30/528,049.77 = 269,444.90/x
  3. Step 3: Cross multiply
    382,571.30x = 528,049.77 × 269,444.90
  4. Step 4: Simplify right side
    382,571.30x = 142,280,317,472.67
  5. Step 5: Solve for x
    x = 142,280,317,472.67/382,571.30
  6. Step 6: Final answer
    x = 371,905.36

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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.