Home / 339,856.08-509,845.68-140,065.26

Finding the Fourth Proportional to 339,856.08, 509,845.68 and 140,065.26

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Solution

The fourth proportional to 339,856.08, 509,845.68 and 140,065.26 is: 210,123.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,856.08 : 509,845.68 = 140,065.26 : x
  2. Step 2: Convert to fraction form
    339,856.08/509,845.68 = 140,065.26/x
  3. Step 3: Cross multiply
    339,856.08x = 509,845.68 × 140,065.26
  4. Step 4: Simplify right side
    339,856.08x = 71,411,667,729.08
  5. Step 5: Solve for x
    x = 71,411,667,729.08/339,856.08
  6. Step 6: Final answer
    x = 210,123.26

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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.