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Finding the Fourth Proportional to 200,160.60, 300,168.06 and 67,009.20

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Solution

The fourth proportional to 200,160.60, 300,168.06 and 67,009.20 is: 100,489.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,160.60 : 300,168.06 = 67,009.20 : x
  2. Step 2: Convert to fraction form
    200,160.60/300,168.06 = 67,009.20/x
  3. Step 3: Cross multiply
    200,160.60x = 300,168.06 × 67,009.20
  4. Step 4: Simplify right side
    200,160.60x = 20,114,021,566.15
  5. Step 5: Solve for x
    x = 20,114,021,566.15/200,160.60
  6. Step 6: Final answer
    x = 100,489.41

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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.