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Finding the Fourth Proportional to 242,022.40, 363,206.40 and 136,729.60

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Solution

The fourth proportional to 242,022.40, 363,206.40 and 136,729.60 is: 205,192.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,022.40 : 363,206.40 = 136,729.60 : x
  2. Step 2: Convert to fraction form
    242,022.40/363,206.40 = 136,729.60/x
  3. Step 3: Cross multiply
    242,022.40x = 363,206.40 × 136,729.60
  4. Step 4: Simplify right side
    242,022.40x = 49,661,065,789.44
  5. Step 5: Solve for x
    x = 49,661,065,789.44/242,022.40
  6. Step 6: Final answer
    x = 205,192.02

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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.