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Finding the Fourth Proportional to 192,408.27, 288,655.01 and 66,045.69

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Solution

The fourth proportional to 192,408.27, 288,655.01 and 66,045.69 is: 99,083.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,408.27 : 288,655.01 = 66,045.69 : x
  2. Step 2: Convert to fraction form
    192,408.27/288,655.01 = 66,045.69/x
  3. Step 3: Cross multiply
    192,408.27x = 288,655.01 × 66,045.69
  4. Step 4: Simplify right side
    192,408.27x = 19,064,418,977.18
  5. Step 5: Solve for x
    x = 19,064,418,977.18/192,408.27
  6. Step 6: Final answer
    x = 99,083.16

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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.