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Finding the Fourth Proportional to 636,616.76, 954,777.03 and 187,217.42

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Solution

The fourth proportional to 636,616.76, 954,777.03 and 187,217.42 is: 280,782.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,616.76 : 954,777.03 = 187,217.42 : x
  2. Step 2: Convert to fraction form
    636,616.76/954,777.03 = 187,217.42/x
  3. Step 3: Cross multiply
    636,616.76x = 954,777.03 × 187,217.42
  4. Step 4: Simplify right side
    636,616.76x = 178,750,892,231.86
  5. Step 5: Solve for x
    x = 178,750,892,231.86/636,616.76
  6. Step 6: Final answer
    x = 280,782.57

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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.