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Finding the Fourth Proportional to 448,375.50, 618,727.21 and 252,171.36

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Solution

The fourth proportional to 448,375.50, 618,727.21 and 252,171.36 is: 347,979.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,375.50 : 618,727.21 = 252,171.36 : x
  2. Step 2: Convert to fraction form
    448,375.50/618,727.21 = 252,171.36/x
  3. Step 3: Cross multiply
    448,375.50x = 618,727.21 × 252,171.36
  4. Step 4: Simplify right side
    448,375.50x = 156,025,281,384.28
  5. Step 5: Solve for x
    x = 156,025,281,384.28/448,375.50
  6. Step 6: Final answer
    x = 347,979.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.