Home / 305,788.77-421,994.16-169,835.31

Finding the Fourth Proportional to 305,788.77, 421,994.16 and 169,835.31

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Solution

The fourth proportional to 305,788.77, 421,994.16 and 169,835.31 is: 234,375.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,788.77 : 421,994.16 = 169,835.31 : x
  2. Step 2: Convert to fraction form
    305,788.77/421,994.16 = 169,835.31/x
  3. Step 3: Cross multiply
    305,788.77x = 421,994.16 × 169,835.31
  4. Step 4: Simplify right side
    305,788.77x = 71,669,508,981.79
  5. Step 5: Solve for x
    x = 71,669,508,981.79/305,788.77
  6. Step 6: Final answer
    x = 234,375.87

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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.