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Finding the Fourth Proportional to 399,807.86, 599,536.82 and 119,269.22

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Solution

The fourth proportional to 399,807.86, 599,536.82 and 119,269.22 is: 178,851.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,807.86 : 599,536.82 = 119,269.22 : x
  2. Step 2: Convert to fraction form
    399,807.86/599,536.82 = 119,269.22/x
  3. Step 3: Cross multiply
    399,807.86x = 599,536.82 × 119,269.22
  4. Step 4: Simplify right side
    399,807.86x = 71,506,288,882.68
  5. Step 5: Solve for x
    x = 71,506,288,882.68/399,807.86
  6. Step 6: Final answer
    x = 178,851.63

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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.