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Finding the Fourth Proportional to 200,159.60, 300,166.56 and 67,008.20

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Solution

The fourth proportional to 200,159.60, 300,166.56 and 67,008.20 is: 100,487.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,159.60 : 300,166.56 = 67,008.20 : x
  2. Step 2: Convert to fraction form
    200,159.60/300,166.56 = 67,008.20/x
  3. Step 3: Cross multiply
    200,159.60x = 300,166.56 × 67,008.20
  4. Step 4: Simplify right side
    200,159.60x = 20,113,619,384.96
  5. Step 5: Solve for x
    x = 20,113,619,384.96/200,159.60
  6. Step 6: Final answer
    x = 100,487.91

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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.