Home / 231,909.26-320,097.78-136,446.71

Finding the Fourth Proportional to 231,909.26, 320,097.78 and 136,446.71

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Solution

The fourth proportional to 231,909.26, 320,097.78 and 136,446.71 is: 188,333.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,909.26 : 320,097.78 = 136,446.71 : x
  2. Step 2: Convert to fraction form
    231,909.26/320,097.78 = 136,446.71/x
  3. Step 3: Cross multiply
    231,909.26x = 320,097.78 × 136,446.71
  4. Step 4: Simplify right side
    231,909.26x = 43,676,287,358.81
  5. Step 5: Solve for x
    x = 43,676,287,358.81/231,909.26
  6. Step 6: Final answer
    x = 188,333.52

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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.