Home / 208,846.98-313,306.20-82,421.28

Finding the Fourth Proportional to 208,846.98, 313,306.20 and 82,421.28

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Solution

The fourth proportional to 208,846.98, 313,306.20 and 82,421.28 is: 123,646.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,846.98 : 313,306.20 = 82,421.28 : x
  2. Step 2: Convert to fraction form
    208,846.98/313,306.20 = 82,421.28/x
  3. Step 3: Cross multiply
    208,846.98x = 313,306.20 × 82,421.28
  4. Step 4: Simplify right side
    208,846.98x = 25,823,098,035.94
  5. Step 5: Solve for x
    x = 25,823,098,035.94/208,846.98
  6. Step 6: Final answer
    x = 123,646.02

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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.