Home / 320,667.60-442,782.84-206,003.16

Finding the Fourth Proportional to 320,667.60, 442,782.84 and 206,003.16

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Solution

The fourth proportional to 320,667.60, 442,782.84 and 206,003.16 is: 284,452.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,667.60 : 442,782.84 = 206,003.16 : x
  2. Step 2: Convert to fraction form
    320,667.60/442,782.84 = 206,003.16/x
  3. Step 3: Cross multiply
    320,667.60x = 442,782.84 × 206,003.16
  4. Step 4: Simplify right side
    320,667.60x = 91,214,664,233.77
  5. Step 5: Solve for x
    x = 91,214,664,233.77/320,667.60
  6. Step 6: Final answer
    x = 284,452.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.