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Finding the Fourth Proportional to 200,672.80, 301,009.20 and 134,144.80

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Solution

The fourth proportional to 200,672.80, 301,009.20 and 134,144.80 is: 201,217.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,672.80 : 301,009.20 = 134,144.80 : x
  2. Step 2: Convert to fraction form
    200,672.80/301,009.20 = 134,144.80/x
  3. Step 3: Cross multiply
    200,672.80x = 301,009.20 × 134,144.80
  4. Step 4: Simplify right side
    200,672.80x = 40,378,818,932.16
  5. Step 5: Solve for x
    x = 40,378,818,932.16/200,672.80
  6. Step 6: Final answer
    x = 201,217.20

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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.