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Finding the Fourth Proportional to 647,244.20, 970,175.10 and 247,730.60

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Solution

The fourth proportional to 647,244.20, 970,175.10 and 247,730.60 is: 371,331.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,244.20 : 970,175.10 = 247,730.60 : x
  2. Step 2: Convert to fraction form
    647,244.20/970,175.10 = 247,730.60/x
  3. Step 3: Cross multiply
    647,244.20x = 970,175.10 × 247,730.60
  4. Step 4: Simplify right side
    647,244.20x = 240,342,059,628.06
  5. Step 5: Solve for x
    x = 240,342,059,628.06/647,244.20
  6. Step 6: Final answer
    x = 371,331.35

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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.