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Finding the Fourth Proportional to 359,656.78, 496,338.66 and 206,723.38

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Solution

The fourth proportional to 359,656.78, 496,338.66 and 206,723.38 is: 285,285.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,656.78 : 496,338.66 = 206,723.38 : x
  2. Step 2: Convert to fraction form
    359,656.78/496,338.66 = 206,723.38/x
  3. Step 3: Cross multiply
    359,656.78x = 496,338.66 × 206,723.38
  4. Step 4: Simplify right side
    359,656.78x = 102,604,805,419.87
  5. Step 5: Solve for x
    x = 102,604,805,419.87/359,656.78
  6. Step 6: Final answer
    x = 285,285.34

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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.