Home / 309,901.41-427,645.98-173,922.66

Finding the Fourth Proportional to 309,901.41, 427,645.98 and 173,922.66

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Solution

The fourth proportional to 309,901.41, 427,645.98 and 173,922.66 is: 240,003.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,901.41 : 427,645.98 = 173,922.66 : x
  2. Step 2: Convert to fraction form
    309,901.41/427,645.98 = 173,922.66/x
  3. Step 3: Cross multiply
    309,901.41x = 427,645.98 × 173,922.66
  4. Step 4: Simplify right side
    309,901.41x = 74,377,326,379.91
  5. Step 5: Solve for x
    x = 74,377,326,379.91/309,901.41
  6. Step 6: Final answer
    x = 240,003.19

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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.