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Finding the Fourth Proportional to 242,612.20, 363,918.30 and 231,725.80

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Solution

The fourth proportional to 242,612.20, 363,918.30 and 231,725.80 is: 347,588.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,612.20 : 363,918.30 = 231,725.80 : x
  2. Step 2: Convert to fraction form
    242,612.20/363,918.30 = 231,725.80/x
  3. Step 3: Cross multiply
    242,612.20x = 363,918.30 × 231,725.80
  4. Step 4: Simplify right side
    242,612.20x = 84,329,259,202.14
  5. Step 5: Solve for x
    x = 84,329,259,202.14/242,612.20
  6. Step 6: Final answer
    x = 347,588.70

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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.