Home / 237,337.78-327,523.38-128,439.60

Finding the Fourth Proportional to 237,337.78, 327,523.38 and 128,439.60

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Solution

The fourth proportional to 237,337.78, 327,523.38 and 128,439.60 is: 177,245.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,337.78 : 327,523.38 = 128,439.60 : x
  2. Step 2: Convert to fraction form
    237,337.78/327,523.38 = 128,439.60/x
  3. Step 3: Cross multiply
    237,337.78x = 327,523.38 × 128,439.60
  4. Step 4: Simplify right side
    237,337.78x = 42,066,971,917.85
  5. Step 5: Solve for x
    x = 42,066,971,917.85/237,337.78
  6. Step 6: Final answer
    x = 177,245.16

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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.