Home / 300,833.28-451,042.56-142,928.64

Finding the Fourth Proportional to 300,833.28, 451,042.56 and 142,928.64

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Solution

The fourth proportional to 300,833.28, 451,042.56 and 142,928.64 is: 214,294.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,833.28 : 451,042.56 = 142,928.64 : x
  2. Step 2: Convert to fraction form
    300,833.28/451,042.56 = 142,928.64/x
  3. Step 3: Cross multiply
    300,833.28x = 451,042.56 × 142,928.64
  4. Step 4: Simplify right side
    300,833.28x = 64,466,899,682.92
  5. Step 5: Solve for x
    x = 64,466,899,682.92/300,833.28
  6. Step 6: Final answer
    x = 214,294.44

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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.