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Finding the Fourth Proportional to 455,408.04, 682,992.82 and 135,473.72

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Solution

The fourth proportional to 455,408.04, 682,992.82 and 135,473.72 is: 203,175.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,408.04 : 682,992.82 = 135,473.72 : x
  2. Step 2: Convert to fraction form
    455,408.04/682,992.82 = 135,473.72/x
  3. Step 3: Cross multiply
    455,408.04x = 682,992.82 × 135,473.72
  4. Step 4: Simplify right side
    455,408.04x = 92,527,578,058.69
  5. Step 5: Solve for x
    x = 92,527,578,058.69/455,408.04
  6. Step 6: Final answer
    x = 203,175.11

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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.