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Finding the Fourth Proportional to 608,356.60, 911,889.78 and 234,217.72

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Solution

The fourth proportional to 608,356.60, 911,889.78 and 234,217.72 is: 351,078.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,356.60 : 911,889.78 = 234,217.72 : x
  2. Step 2: Convert to fraction form
    608,356.60/911,889.78 = 234,217.72/x
  3. Step 3: Cross multiply
    608,356.60x = 911,889.78 × 234,217.72
  4. Step 4: Simplify right side
    608,356.60x = 213,580,745,162.90
  5. Step 5: Solve for x
    x = 213,580,745,162.90/608,356.60
  6. Step 6: Final answer
    x = 351,078.21

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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.