Home / 305,228.03-421,236.24-169,274.98

Finding the Fourth Proportional to 305,228.03, 421,236.24 and 169,274.98

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Solution

The fourth proportional to 305,228.03, 421,236.24 and 169,274.98 is: 233,611.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,228.03 : 421,236.24 = 169,274.98 : x
  2. Step 2: Convert to fraction form
    305,228.03/421,236.24 = 169,274.98/x
  3. Step 3: Cross multiply
    305,228.03x = 421,236.24 × 169,274.98
  4. Step 4: Simplify right side
    305,228.03x = 71,304,753,995.09
  5. Step 5: Solve for x
    x = 71,304,753,995.09/305,228.03
  6. Step 6: Final answer
    x = 233,611.42

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1.5x scale

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.