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Finding the Fourth Proportional to 240,019.43, 331,213.12 and 143,332.43

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Solution

The fourth proportional to 240,019.43, 331,213.12 and 143,332.43 is: 197,790.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,019.43 : 331,213.12 = 143,332.43 : x
  2. Step 2: Convert to fraction form
    240,019.43/331,213.12 = 143,332.43/x
  3. Step 3: Cross multiply
    240,019.43x = 331,213.12 × 143,332.43
  4. Step 4: Simplify right side
    240,019.43x = 47,473,579,323.08
  5. Step 5: Solve for x
    x = 47,473,579,323.08/240,019.43
  6. Step 6: Final answer
    x = 197,790.57

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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.