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Finding the Fourth Proportional to 200,077.38, 300,200.31 and 87,699.60

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Solution

The fourth proportional to 200,077.38, 300,200.31 and 87,699.60 is: 131,586.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,077.38 : 300,200.31 = 87,699.60 : x
  2. Step 2: Convert to fraction form
    200,077.38/300,200.31 = 87,699.60/x
  3. Step 3: Cross multiply
    200,077.38x = 300,200.31 × 87,699.60
  4. Step 4: Simplify right side
    200,077.38x = 26,327,447,106.88
  5. Step 5: Solve for x
    x = 26,327,447,106.88/200,077.38
  6. Step 6: Final answer
    x = 131,586.32

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1.5x scale

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.