Home / 339,742.08-509,687.17-103,103.28

Finding the Fourth Proportional to 339,742.08, 509,687.17 and 103,103.28

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Solution

The fourth proportional to 339,742.08, 509,687.17 and 103,103.28 is: 154,677.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,742.08 : 509,687.17 = 103,103.28 : x
  2. Step 2: Convert to fraction form
    339,742.08/509,687.17 = 103,103.28/x
  3. Step 3: Cross multiply
    339,742.08x = 509,687.17 × 103,103.28
  4. Step 4: Simplify right side
    339,742.08x = 52,550,418,743.16
  5. Step 5: Solve for x
    x = 52,550,418,743.16/339,742.08
  6. Step 6: Final answer
    x = 154,677.39

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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.