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Finding the Fourth Proportional to 243,160.99, 363,994.09 and 207,288.71

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Solution

The fourth proportional to 243,160.99, 363,994.09 and 207,288.71 is: 310,295.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,160.99 : 363,994.09 = 207,288.71 : x
  2. Step 2: Convert to fraction form
    243,160.99/363,994.09 = 207,288.71/x
  3. Step 3: Cross multiply
    243,160.99x = 363,994.09 × 207,288.71
  4. Step 4: Simplify right side
    243,160.99x = 75,451,865,363.72
  5. Step 5: Solve for x
    x = 75,451,865,363.72/243,160.99
  6. Step 6: Final answer
    x = 310,295.93

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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.