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Finding the Fourth Proportional to 191,500.20, 287,270.28 and 73,270.44

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Solution

The fourth proportional to 191,500.20, 287,270.28 and 73,270.44 is: 109,913.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,500.20 : 287,270.28 = 73,270.44 : x
  2. Step 2: Convert to fraction form
    191,500.20/287,270.28 = 73,270.44/x
  3. Step 3: Cross multiply
    191,500.20x = 287,270.28 × 73,270.44
  4. Step 4: Simplify right side
    191,500.20x = 21,048,419,814.52
  5. Step 5: Solve for x
    x = 21,048,419,814.52/191,500.20
  6. Step 6: Final answer
    x = 109,913.30

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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.