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Finding the Fourth Proportional to 378,337.51, 522,089.58 and 206,251.39

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Solution

The fourth proportional to 378,337.51, 522,089.58 and 206,251.39 is: 284,618.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,337.51 : 522,089.58 = 206,251.39 : x
  2. Step 2: Convert to fraction form
    378,337.51/522,089.58 = 206,251.39/x
  3. Step 3: Cross multiply
    378,337.51x = 522,089.58 × 206,251.39
  4. Step 4: Simplify right side
    378,337.51x = 107,681,701,579.52
  5. Step 5: Solve for x
    x = 107,681,701,579.52/378,337.51
  6. Step 6: Final answer
    x = 284,618.10

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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.