Home / 303,077.20-454,517.44-143,128.40

Finding the Fourth Proportional to 303,077.20, 454,517.44 and 143,128.40

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Solution

The fourth proportional to 303,077.20, 454,517.44 and 143,128.40 is: 214,646.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,077.20 : 454,517.44 = 143,128.40 : x
  2. Step 2: Convert to fraction form
    303,077.20/454,517.44 = 143,128.40/x
  3. Step 3: Cross multiply
    303,077.20x = 454,517.44 × 143,128.40
  4. Step 4: Simplify right side
    303,077.20x = 65,054,353,959.30
  5. Step 5: Solve for x
    x = 65,054,353,959.30/303,077.20
  6. Step 6: Final answer
    x = 214,646.15

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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.