Home / 305,645.32-421,769.37-169,668.52

Finding the Fourth Proportional to 305,645.32, 421,769.37 and 169,668.52

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Solution

The fourth proportional to 305,645.32, 421,769.37 and 169,668.52 is: 234,130.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,645.32 : 421,769.37 = 169,668.52 : x
  2. Step 2: Convert to fraction form
    305,645.32/421,769.37 = 169,668.52/x
  3. Step 3: Cross multiply
    305,645.32x = 421,769.37 × 169,668.52
  4. Step 4: Simplify right side
    305,645.32x = 71,560,984,789.23
  5. Step 5: Solve for x
    x = 71,560,984,789.23/305,645.32
  6. Step 6: Final answer
    x = 234,130.80

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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.