Home / 305,727.98-421,890.54-169,770.58

Finding the Fourth Proportional to 305,727.98, 421,890.54 and 169,770.58

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Solution

The fourth proportional to 305,727.98, 421,890.54 and 169,770.58 is: 234,275.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,727.98 : 421,890.54 = 169,770.58 : x
  2. Step 2: Convert to fraction form
    305,727.98/421,890.54 = 169,770.58/x
  3. Step 3: Cross multiply
    305,727.98x = 421,890.54 × 169,770.58
  4. Step 4: Simplify right side
    305,727.98x = 71,624,599,980.95
  5. Step 5: Solve for x
    x = 71,624,599,980.95/305,727.98
  6. Step 6: Final answer
    x = 234,275.58

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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.