Home / 330,408.05-455,985.65-187,169.27

Finding the Fourth Proportional to 330,408.05, 455,985.65 and 187,169.27

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Solution

The fourth proportional to 330,408.05, 455,985.65 and 187,169.27 is: 258,306.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,408.05 : 455,985.65 = 187,169.27 : x
  2. Step 2: Convert to fraction form
    330,408.05/455,985.65 = 187,169.27/x
  3. Step 3: Cross multiply
    330,408.05x = 455,985.65 × 187,169.27
  4. Step 4: Simplify right side
    330,408.05x = 85,346,499,428.97
  5. Step 5: Solve for x
    x = 85,346,499,428.97/330,408.05
  6. Step 6: Final answer
    x = 258,306.36

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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.