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Finding the Fourth Proportional to 647,580.60, 971,198.10 and 226,812.60

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Solution

The fourth proportional to 647,580.60, 971,198.10 and 226,812.60 is: 340,158.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,580.60 : 971,198.10 = 226,812.60 : x
  2. Step 2: Convert to fraction form
    647,580.60/971,198.10 = 226,812.60/x
  3. Step 3: Cross multiply
    647,580.60x = 971,198.10 × 226,812.60
  4. Step 4: Simplify right side
    647,580.60x = 220,279,966,176.06
  5. Step 5: Solve for x
    x = 220,279,966,176.06/647,580.60
  6. Step 6: Final answer
    x = 340,158.38

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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.