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Finding the Fourth Proportional to 359,800.12, 496,424.82 and 206,830.36

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Solution

The fourth proportional to 359,800.12, 496,424.82 and 206,830.36 is: 285,368.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,800.12 : 496,424.82 = 206,830.36 : x
  2. Step 2: Convert to fraction form
    359,800.12/496,424.82 = 206,830.36/x
  3. Step 3: Cross multiply
    359,800.12x = 496,424.82 × 206,830.36
  4. Step 4: Simplify right side
    359,800.12x = 102,675,724,233.54
  5. Step 5: Solve for x
    x = 102,675,724,233.54/359,800.12
  6. Step 6: Final answer
    x = 285,368.79

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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.