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Finding the Fourth Proportional to 192,652.29, 287,797.10 and 138,885.41

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Solution

The fourth proportional to 192,652.29, 287,797.10 and 138,885.41 is: 207,476.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,652.29 : 287,797.10 = 138,885.41 : x
  2. Step 2: Convert to fraction form
    192,652.29/287,797.10 = 138,885.41/x
  3. Step 3: Cross multiply
    192,652.29x = 287,797.10 × 138,885.41
  4. Step 4: Simplify right side
    192,652.29x = 39,970,816,096.90
  5. Step 5: Solve for x
    x = 39,970,816,096.90/192,652.29
  6. Step 6: Final answer
    x = 207,476.46

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.