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Finding the Fourth Proportional to 252,225.20, 378,337.80 and 211,674.80

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Solution

The fourth proportional to 252,225.20, 378,337.80 and 211,674.80 is: 317,512.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,225.20 : 378,337.80 = 211,674.80 : x
  2. Step 2: Convert to fraction form
    252,225.20/378,337.80 = 211,674.80/x
  3. Step 3: Cross multiply
    252,225.20x = 378,337.80 × 211,674.80
  4. Step 4: Simplify right side
    252,225.20x = 80,084,578,147.44
  5. Step 5: Solve for x
    x = 80,084,578,147.44/252,225.20
  6. Step 6: Final answer
    x = 317,512.20

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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.