Home / 208,143.42-312,215.14-50,371.88

Finding the Fourth Proportional to 208,143.42, 312,215.14 and 50,371.88

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Solution

The fourth proportional to 208,143.42, 312,215.14 and 50,371.88 is: 75,557.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,143.42 : 312,215.14 = 50,371.88 : x
  2. Step 2: Convert to fraction form
    208,143.42/312,215.14 = 50,371.88/x
  3. Step 3: Cross multiply
    208,143.42x = 312,215.14 × 50,371.88
  4. Step 4: Simplify right side
    208,143.42x = 15,726,863,566.26
  5. Step 5: Solve for x
    x = 15,726,863,566.26/208,143.42
  6. Step 6: Final answer
    x = 75,557.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.