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Finding the Fourth Proportional to 489,499.88, 734,257.92 and 134,511.71

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Solution

The fourth proportional to 489,499.88, 734,257.92 and 134,511.71 is: 201,769.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,499.88 : 734,257.92 = 134,511.71 : x
  2. Step 2: Convert to fraction form
    489,499.88/734,257.92 = 134,511.71/x
  3. Step 3: Cross multiply
    489,499.88x = 734,257.92 × 134,511.71
  4. Step 4: Simplify right side
    489,499.88x = 98,766,288,400.24
  5. Step 5: Solve for x
    x = 98,766,288,400.24/489,499.88
  6. Step 6: Final answer
    x = 201,769.79

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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.