Home / 300,131.04-450,197.32-122,638.05

Finding the Fourth Proportional to 300,131.04, 450,197.32 and 122,638.05

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Solution

The fourth proportional to 300,131.04, 450,197.32 and 122,638.05 is: 183,957.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,131.04 : 450,197.32 = 122,638.05 : x
  2. Step 2: Convert to fraction form
    300,131.04/450,197.32 = 122,638.05/x
  3. Step 3: Cross multiply
    300,131.04x = 450,197.32 × 122,638.05
  4. Step 4: Simplify right side
    300,131.04x = 55,211,321,440.03
  5. Step 5: Solve for x
    x = 55,211,321,440.03/300,131.04
  6. Step 6: Final answer
    x = 183,957.39

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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.