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Finding the Fourth Proportional to 191,977.20, 287,620.20 and 164,329.20

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Solution

The fourth proportional to 191,977.20, 287,620.20 and 164,329.20 is: 246,197.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,977.20 : 287,620.20 = 164,329.20 : x
  2. Step 2: Convert to fraction form
    191,977.20/287,620.20 = 164,329.20/x
  3. Step 3: Cross multiply
    191,977.20x = 287,620.20 × 164,329.20
  4. Step 4: Simplify right side
    191,977.20x = 47,264,397,369.84
  5. Step 5: Solve for x
    x = 47,264,397,369.84/191,977.20
  6. Step 6: Final answer
    x = 246,197.97

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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.