Home / 203,434.20-305,151.30-140,448.60

Finding the Fourth Proportional to 203,434.20, 305,151.30 and 140,448.60

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Solution

The fourth proportional to 203,434.20, 305,151.30 and 140,448.60 is: 210,672.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,434.20 : 305,151.30 = 140,448.60 : x
  2. Step 2: Convert to fraction form
    203,434.20/305,151.30 = 140,448.60/x
  3. Step 3: Cross multiply
    203,434.20x = 305,151.30 × 140,448.60
  4. Step 4: Simplify right side
    203,434.20x = 42,858,072,873.18
  5. Step 5: Solve for x
    x = 42,858,072,873.18/203,434.20
  6. Step 6: Final answer
    x = 210,672.90

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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.