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Finding the Fourth Proportional to 200,210.72, 300,342.30 and 73,939.62

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Solution

The fourth proportional to 200,210.72, 300,342.30 and 73,939.62 is: 110,919.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,210.72 : 300,342.30 = 73,939.62 : x
  2. Step 2: Convert to fraction form
    200,210.72/300,342.30 = 73,939.62/x
  3. Step 3: Cross multiply
    200,210.72x = 300,342.30 × 73,939.62
  4. Step 4: Simplify right side
    200,210.72x = 22,207,195,531.93
  5. Step 5: Solve for x
    x = 22,207,195,531.93/200,210.72
  6. Step 6: Final answer
    x = 110,919.11

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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.