Home / 231,938.48-320,069.68-136,451.32

Finding the Fourth Proportional to 231,938.48, 320,069.68 and 136,451.32

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Solution

The fourth proportional to 231,938.48, 320,069.68 and 136,451.32 is: 188,299.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,938.48 : 320,069.68 = 136,451.32 : x
  2. Step 2: Convert to fraction form
    231,938.48/320,069.68 = 136,451.32/x
  3. Step 3: Cross multiply
    231,938.48x = 320,069.68 × 136,451.32
  4. Step 4: Simplify right side
    231,938.48x = 43,673,929,186.68
  5. Step 5: Solve for x
    x = 43,673,929,186.68/231,938.48
  6. Step 6: Final answer
    x = 188,299.62

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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.