Home / 240,249.12-331,488.76-143,434.12

Finding the Fourth Proportional to 240,249.12, 331,488.76 and 143,434.12

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Solution

The fourth proportional to 240,249.12, 331,488.76 and 143,434.12 is: 197,906.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,249.12 : 331,488.76 = 143,434.12 : x
  2. Step 2: Convert to fraction form
    240,249.12/331,488.76 = 143,434.12/x
  3. Step 3: Cross multiply
    240,249.12x = 331,488.76 × 143,434.12
  4. Step 4: Simplify right side
    240,249.12x = 47,546,798,580.49
  5. Step 5: Solve for x
    x = 47,546,798,580.49/240,249.12
  6. Step 6: Final answer
    x = 197,906.23

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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.