Home / 208,421.28-312,631.92-50,649.84

Finding the Fourth Proportional to 208,421.28, 312,631.92 and 50,649.84

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Solution

The fourth proportional to 208,421.28, 312,631.92 and 50,649.84 is: 75,974.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,421.28 : 312,631.92 = 50,649.84 : x
  2. Step 2: Convert to fraction form
    208,421.28/312,631.92 = 50,649.84/x
  3. Step 3: Cross multiply
    208,421.28x = 312,631.92 × 50,649.84
  4. Step 4: Simplify right side
    208,421.28x = 15,834,756,726.89
  5. Step 5: Solve for x
    x = 15,834,756,726.89/208,421.28
  6. Step 6: Final answer
    x = 75,974.76

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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.