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Finding the Fourth Proportional to 191,984.80, 287,890.80 and 73,616.80

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Solution

The fourth proportional to 191,984.80, 287,890.80 and 73,616.80 is: 110,392.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,984.80 : 287,890.80 = 73,616.80 : x
  2. Step 2: Convert to fraction form
    191,984.80/287,890.80 = 73,616.80/x
  3. Step 3: Cross multiply
    191,984.80x = 287,890.80 × 73,616.80
  4. Step 4: Simplify right side
    191,984.80x = 21,193,599,445.44
  5. Step 5: Solve for x
    x = 21,193,599,445.44/191,984.80
  6. Step 6: Final answer
    x = 110,392.07

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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.