Home / 258,450.45-387,279.99-173,897.43

Finding the Fourth Proportional to 258,450.45, 387,279.99 and 173,897.43

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Solution

The fourth proportional to 258,450.45, 387,279.99 and 173,897.43 is: 260,579.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,450.45 : 387,279.99 = 173,897.43 : x
  2. Step 2: Convert to fraction form
    258,450.45/387,279.99 = 173,897.43/x
  3. Step 3: Cross multiply
    258,450.45x = 387,279.99 × 173,897.43
  4. Step 4: Simplify right side
    258,450.45x = 67,346,994,951.43
  5. Step 5: Solve for x
    x = 67,346,994,951.43/258,450.45
  6. Step 6: Final answer
    x = 260,579.91

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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.