Home / 300,131.12-450,197.45-122,638.14

Finding the Fourth Proportional to 300,131.12, 450,197.45 and 122,638.14

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Solution

The fourth proportional to 300,131.12, 450,197.45 and 122,638.14 is: 183,957.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,131.12 : 450,197.45 = 122,638.14 : x
  2. Step 2: Convert to fraction form
    300,131.12/450,197.45 = 122,638.14/x
  3. Step 3: Cross multiply
    300,131.12x = 450,197.45 × 122,638.14
  4. Step 4: Simplify right side
    300,131.12x = 55,211,377,287.55
  5. Step 5: Solve for x
    x = 55,211,377,287.55/300,131.12
  6. Step 6: Final answer
    x = 183,957.53

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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.