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Finding the Fourth Proportional to 272,301.60, 381,615.90 and 272,301.60

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Solution

The fourth proportional to 272,301.60, 381,615.90 and 272,301.60 is: 381,615.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,301.60 : 381,615.90 = 272,301.60 : x
  2. Step 2: Convert to fraction form
    272,301.60/381,615.90 = 272,301.60/x
  3. Step 3: Cross multiply
    272,301.60x = 381,615.90 × 272,301.60
  4. Step 4: Simplify right side
    272,301.60x = 103,914,620,155.44
  5. Step 5: Solve for x
    x = 103,914,620,155.44/272,301.60
  6. Step 6: Final answer
    x = 381,615.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.