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Finding the Fourth Proportional to 252,314.40, 378,171.90 and 133,924.80

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Solution

The fourth proportional to 252,314.40, 378,171.90 and 133,924.80 is: 200,728.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,314.40 : 378,171.90 = 133,924.80 : x
  2. Step 2: Convert to fraction form
    252,314.40/378,171.90 = 133,924.80/x
  3. Step 3: Cross multiply
    252,314.40x = 378,171.90 × 133,924.80
  4. Step 4: Simplify right side
    252,314.40x = 50,646,596,073.12
  5. Step 5: Solve for x
    x = 50,646,596,073.12/252,314.40
  6. Step 6: Final answer
    x = 200,728.12

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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.