Home / 312,105.79-467,961.85-171,962.83

Finding the Fourth Proportional to 312,105.79, 467,961.85 and 171,962.83

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Solution

The fourth proportional to 312,105.79, 467,961.85 and 171,962.83 is: 257,835.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,105.79 : 467,961.85 = 171,962.83 : x
  2. Step 2: Convert to fraction form
    312,105.79/467,961.85 = 171,962.83/x
  3. Step 3: Cross multiply
    312,105.79x = 467,961.85 × 171,962.83
  4. Step 4: Simplify right side
    312,105.79x = 80,472,044,058.04
  5. Step 5: Solve for x
    x = 80,472,044,058.04/312,105.79
  6. Step 6: Final answer
    x = 257,835.79

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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.