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Finding the Fourth Proportional to 368,350.39, 508,318.90 and 207,206.56

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Solution

The fourth proportional to 368,350.39, 508,318.90 and 207,206.56 is: 285,942.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,350.39 : 508,318.90 = 207,206.56 : x
  2. Step 2: Convert to fraction form
    368,350.39/508,318.90 = 207,206.56/x
  3. Step 3: Cross multiply
    368,350.39x = 508,318.90 × 207,206.56
  4. Step 4: Simplify right side
    368,350.39x = 105,327,010,651.98
  5. Step 5: Solve for x
    x = 105,327,010,651.98/368,350.39
  6. Step 6: Final answer
    x = 285,942.44

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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.