Home / 203,605.20-305,148.60-148,136.40

Finding the Fourth Proportional to 203,605.20, 305,148.60 and 148,136.40

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Solution

The fourth proportional to 203,605.20, 305,148.60 and 148,136.40 is: 222,016.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,605.20 : 305,148.60 = 148,136.40 : x
  2. Step 2: Convert to fraction form
    203,605.20/305,148.60 = 148,136.40/x
  3. Step 3: Cross multiply
    203,605.20x = 305,148.60 × 148,136.40
  4. Step 4: Simplify right side
    203,605.20x = 45,203,615,069.04
  5. Step 5: Solve for x
    x = 45,203,615,069.04/203,605.20
  6. Step 6: Final answer
    x = 222,016.01

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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.