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Finding the Fourth Proportional to 200,064.80, 300,097.20 and 185,484.80

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Solution

The fourth proportional to 200,064.80, 300,097.20 and 185,484.80 is: 278,227.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,064.80 : 300,097.20 = 185,484.80 : x
  2. Step 2: Convert to fraction form
    200,064.80/300,097.20 = 185,484.80/x
  3. Step 3: Cross multiply
    200,064.80x = 300,097.20 × 185,484.80
  4. Step 4: Simplify right side
    200,064.80x = 55,663,469,122.56
  5. Step 5: Solve for x
    x = 55,663,469,122.56/200,064.80
  6. Step 6: Final answer
    x = 278,227.20

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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.