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Finding the Fourth Proportional to 339,907.66, 509,757.10 and 112,161.17

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Solution

The fourth proportional to 339,907.66, 509,757.10 and 112,161.17 is: 168,207.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,907.66 : 509,757.10 = 112,161.17 : x
  2. Step 2: Convert to fraction form
    339,907.66/509,757.10 = 112,161.17/x
  3. Step 3: Cross multiply
    339,907.66x = 509,757.10 × 112,161.17
  4. Step 4: Simplify right side
    339,907.66x = 57,174,953,745.80
  5. Step 5: Solve for x
    x = 57,174,953,745.80/339,907.66
  6. Step 6: Final answer
    x = 168,207.31

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1.5x scale

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.