Home / 305,776.35-421,977.04-169,822.94

Finding the Fourth Proportional to 305,776.35, 421,977.04 and 169,822.94

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Solution

The fourth proportional to 305,776.35, 421,977.04 and 169,822.94 is: 234,358.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,776.35 : 421,977.04 = 169,822.94 : x
  2. Step 2: Convert to fraction form
    305,776.35/421,977.04 = 169,822.94/x
  3. Step 3: Cross multiply
    305,776.35x = 421,977.04 × 169,822.94
  4. Step 4: Simplify right side
    305,776.35x = 71,661,379,010.86
  5. Step 5: Solve for x
    x = 71,661,379,010.86/305,776.35
  6. Step 6: Final answer
    x = 234,358.80

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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.