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Finding the Fourth Proportional to 353,523.28, 487,872.38 and 192,388.72

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Solution

The fourth proportional to 353,523.28, 487,872.38 and 192,388.72 is: 265,502.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,523.28 : 487,872.38 = 192,388.72 : x
  2. Step 2: Convert to fraction form
    353,523.28/487,872.38 = 192,388.72/x
  3. Step 3: Cross multiply
    353,523.28x = 487,872.38 × 192,388.72
  4. Step 4: Simplify right side
    353,523.28x = 93,861,142,711.55
  5. Step 5: Solve for x
    x = 93,861,142,711.55/353,523.28
  6. Step 6: Final answer
    x = 265,502.01

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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.