Home / 339,631.12-509,415.43-114,965.87

Finding the Fourth Proportional to 339,631.12, 509,415.43 and 114,965.87

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Solution

The fourth proportional to 339,631.12, 509,415.43 and 114,965.87 is: 172,438.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,631.12 : 509,415.43 = 114,965.87 : x
  2. Step 2: Convert to fraction form
    339,631.12/509,415.43 = 114,965.87/x
  3. Step 3: Cross multiply
    339,631.12x = 509,415.43 × 114,965.87
  4. Step 4: Simplify right side
    339,631.12x = 58,565,388,101.37
  5. Step 5: Solve for x
    x = 58,565,388,101.37/339,631.12
  6. Step 6: Final answer
    x = 172,438.23

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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.