Home / 305,937.24-421,959.42-268,145.88

Finding the Fourth Proportional to 305,937.24, 421,959.42 and 268,145.88

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Solution

The fourth proportional to 305,937.24, 421,959.42 and 268,145.88 is: 369,836.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,937.24 : 421,959.42 = 268,145.88 : x
  2. Step 2: Convert to fraction form
    305,937.24/421,959.42 = 268,145.88/x
  3. Step 3: Cross multiply
    305,937.24x = 421,959.42 × 268,145.88
  4. Step 4: Simplify right side
    305,937.24x = 113,146,680,000.19
  5. Step 5: Solve for x
    x = 113,146,680,000.19/305,937.24
  6. Step 6: Final answer
    x = 369,836.24

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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.