Home / 305,764.16-421,935.72-169,789.82

Finding the Fourth Proportional to 305,764.16, 421,935.72 and 169,789.82

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Solution

The fourth proportional to 305,764.16, 421,935.72 and 169,789.82 is: 234,299.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,764.16 : 421,935.72 = 169,789.82 : x
  2. Step 2: Convert to fraction form
    305,764.16/421,935.72 = 169,789.82/x
  3. Step 3: Cross multiply
    305,764.16x = 421,935.72 × 169,789.82
  4. Step 4: Simplify right side
    305,764.16x = 71,640,389,950.37
  5. Step 5: Solve for x
    x = 71,640,389,950.37/305,764.16
  6. Step 6: Final answer
    x = 234,299.50

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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.