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Finding the Fourth Proportional to 243,161.99, 363,995.59 and 207,289.71

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Solution

The fourth proportional to 243,161.99, 363,995.59 and 207,289.71 is: 310,297.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,161.99 : 363,995.59 = 207,289.71 : x
  2. Step 2: Convert to fraction form
    243,161.99/363,995.59 = 207,289.71/x
  3. Step 3: Cross multiply
    243,161.99x = 363,995.59 × 207,289.71
  4. Step 4: Simplify right side
    243,161.99x = 75,452,540,292.38
  5. Step 5: Solve for x
    x = 75,452,540,292.38/243,161.99
  6. Step 6: Final answer
    x = 310,297.43

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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.