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Finding the Fourth Proportional to 300,272.52, 450,343.20 and 100,621.32

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Solution

The fourth proportional to 300,272.52, 450,343.20 and 100,621.32 is: 150,910.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,272.52 : 450,343.20 = 100,621.32 : x
  2. Step 2: Convert to fraction form
    300,272.52/450,343.20 = 100,621.32/x
  3. Step 3: Cross multiply
    300,272.52x = 450,343.20 × 100,621.32
  4. Step 4: Simplify right side
    300,272.52x = 45,314,127,237.02
  5. Step 5: Solve for x
    x = 45,314,127,237.02/300,272.52
  6. Step 6: Final answer
    x = 150,910.00

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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.