Home / 330,377.32-455,906.10-187,134.49

Finding the Fourth Proportional to 330,377.32, 455,906.10 and 187,134.49

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Solution

The fourth proportional to 330,377.32, 455,906.10 and 187,134.49 is: 258,237.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,377.32 : 455,906.10 = 187,134.49 : x
  2. Step 2: Convert to fraction form
    330,377.32/455,906.10 = 187,134.49/x
  3. Step 3: Cross multiply
    330,377.32x = 455,906.10 × 187,134.49
  4. Step 4: Simplify right side
    330,377.32x = 85,315,755,511.39
  5. Step 5: Solve for x
    x = 85,315,755,511.39/330,377.32
  6. Step 6: Final answer
    x = 258,237.33

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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.