Home / 191,986.20-287,633.70-164,338.20

Finding the Fourth Proportional to 191,986.20, 287,633.70 and 164,338.20

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Solution

The fourth proportional to 191,986.20, 287,633.70 and 164,338.20 is: 246,211.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,986.20 : 287,633.70 = 164,338.20 : x
  2. Step 2: Convert to fraction form
    191,986.20/287,633.70 = 164,338.20/x
  3. Step 3: Cross multiply
    191,986.20x = 287,633.70 × 164,338.20
  4. Step 4: Simplify right side
    191,986.20x = 47,269,204,517.34
  5. Step 5: Solve for x
    x = 47,269,204,517.34/191,986.20
  6. Step 6: Final answer
    x = 246,211.47

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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.