Home / 331,238.75-496,847.52-139,214.90

Finding the Fourth Proportional to 331,238.75, 496,847.52 and 139,214.90

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Solution

The fourth proportional to 331,238.75, 496,847.52 and 139,214.90 is: 208,817.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,238.75 : 496,847.52 = 139,214.90 : x
  2. Step 2: Convert to fraction form
    331,238.75/496,847.52 = 139,214.90/x
  3. Step 3: Cross multiply
    331,238.75x = 496,847.52 × 139,214.90
  4. Step 4: Simplify right side
    331,238.75x = 69,168,579,054.17
  5. Step 5: Solve for x
    x = 69,168,579,054.17/331,238.75
  6. Step 6: Final answer
    x = 208,817.90

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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.