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Finding the Fourth Proportional to 378,262.68, 567,523.64 and 129,119.64

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Solution

The fourth proportional to 378,262.68, 567,523.64 and 129,119.64 is: 193,723.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,262.68 : 567,523.64 = 129,119.64 : x
  2. Step 2: Convert to fraction form
    378,262.68/567,523.64 = 129,119.64/x
  3. Step 3: Cross multiply
    378,262.68x = 567,523.64 × 129,119.64
  4. Step 4: Simplify right side
    378,262.68x = 73,278,448,088.29
  5. Step 5: Solve for x
    x = 73,278,448,088.29/378,262.68
  6. Step 6: Final answer
    x = 193,723.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.