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Finding the Fourth Proportional to 204,048.40, 306,072.60 and 79,308.40

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Solution

The fourth proportional to 204,048.40, 306,072.60 and 79,308.40 is: 118,962.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,048.40 : 306,072.60 = 79,308.40 : x
  2. Step 2: Convert to fraction form
    204,048.40/306,072.60 = 79,308.40/x
  3. Step 3: Cross multiply
    204,048.40x = 306,072.60 × 79,308.40
  4. Step 4: Simplify right side
    204,048.40x = 24,274,128,189.84
  5. Step 5: Solve for x
    x = 24,274,128,189.84/204,048.40
  6. Step 6: Final answer
    x = 118,962.60

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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.