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Finding the Fourth Proportional to 242,107.20, 363,112.20 and 115,747.20

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Solution

The fourth proportional to 242,107.20, 363,112.20 and 115,747.20 is: 173,597.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,107.20 : 363,112.20 = 115,747.20 : x
  2. Step 2: Convert to fraction form
    242,107.20/363,112.20 = 115,747.20/x
  3. Step 3: Cross multiply
    242,107.20x = 363,112.20 × 115,747.20
  4. Step 4: Simplify right side
    242,107.20x = 42,029,220,435.84
  5. Step 5: Solve for x
    x = 42,029,220,435.84/242,107.20
  6. Step 6: Final answer
    x = 173,597.57

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1.5x scale

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.