Home / 231,998.94-320,143.32-136,487.16

Finding the Fourth Proportional to 231,998.94, 320,143.32 and 136,487.16

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Solution

The fourth proportional to 231,998.94, 320,143.32 and 136,487.16 is: 188,343.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,998.94 : 320,143.32 = 136,487.16 : x
  2. Step 2: Convert to fraction form
    231,998.94/320,143.32 = 136,487.16/x
  3. Step 3: Cross multiply
    231,998.94x = 320,143.32 × 136,487.16
  4. Step 4: Simplify right side
    231,998.94x = 43,695,452,539.77
  5. Step 5: Solve for x
    x = 43,695,452,539.77/231,998.94
  6. Step 6: Final answer
    x = 188,343.33

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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.