Home / 312,700.28-431,534.58-191,908.52

Finding the Fourth Proportional to 312,700.28, 431,534.58 and 191,908.52

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Solution

The fourth proportional to 312,700.28, 431,534.58 and 191,908.52 is: 264,838.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,700.28 : 431,534.58 = 191,908.52 : x
  2. Step 2: Convert to fraction form
    312,700.28/431,534.58 = 191,908.52/x
  3. Step 3: Cross multiply
    312,700.28x = 431,534.58 × 191,908.52
  4. Step 4: Simplify right side
    312,700.28x = 82,815,162,576.62
  5. Step 5: Solve for x
    x = 82,815,162,576.62/312,700.28
  6. Step 6: Final answer
    x = 264,838.79

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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.