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Finding the Fourth Proportional to 200,179.70, 300,269.74 and 81,851.04

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Solution

The fourth proportional to 200,179.70, 300,269.74 and 81,851.04 is: 122,776.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,179.70 : 300,269.74 = 81,851.04 : x
  2. Step 2: Convert to fraction form
    200,179.70/300,269.74 = 81,851.04/x
  3. Step 3: Cross multiply
    200,179.70x = 300,269.74 × 81,851.04
  4. Step 4: Simplify right side
    200,179.70x = 24,577,390,499.53
  5. Step 5: Solve for x
    x = 24,577,390,499.53/200,179.70
  6. Step 6: Final answer
    x = 122,776.64

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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.