Home / 300,818.28-415,140.66-171,777.78

Finding the Fourth Proportional to 300,818.28, 415,140.66 and 171,777.78

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Solution

The fourth proportional to 300,818.28, 415,140.66 and 171,777.78 is: 237,059.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,818.28 : 415,140.66 = 171,777.78 : x
  2. Step 2: Convert to fraction form
    300,818.28/415,140.66 = 171,777.78/x
  3. Step 3: Cross multiply
    300,818.28x = 415,140.66 × 171,777.78
  4. Step 4: Simplify right side
    300,818.28x = 71,311,940,962.53
  5. Step 5: Solve for x
    x = 71,311,940,962.53/300,818.28
  6. Step 6: Final answer
    x = 237,059.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.