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Finding the Fourth Proportional to 349,150.72, 523,955.74 and 191,489.88

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Solution

The fourth proportional to 349,150.72, 523,955.74 and 191,489.88 is: 287,360.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,150.72 : 523,955.74 = 191,489.88 : x
  2. Step 2: Convert to fraction form
    349,150.72/523,955.74 = 191,489.88/x
  3. Step 3: Cross multiply
    349,150.72x = 523,955.74 × 191,489.88
  4. Step 4: Simplify right side
    349,150.72x = 100,332,221,777.91
  5. Step 5: Solve for x
    x = 100,332,221,777.91/349,150.72
  6. Step 6: Final answer
    x = 287,360.78

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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.