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Finding the Fourth Proportional to 285,442.50, 392,861.97 and 244,698.78

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Solution

The fourth proportional to 285,442.50, 392,861.97 and 244,698.78 is: 336,785.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,442.50 : 392,861.97 = 244,698.78 : x
  2. Step 2: Convert to fraction form
    285,442.50/392,861.97 = 244,698.78/x
  3. Step 3: Cross multiply
    285,442.50x = 392,861.97 × 244,698.78
  4. Step 4: Simplify right side
    285,442.50x = 96,132,844,767.40
  5. Step 5: Solve for x
    x = 96,132,844,767.40/285,442.50
  6. Step 6: Final answer
    x = 336,785.32

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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.