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Finding the Fourth Proportional to 647,941.60, 971,199.60 and 227,000.80

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Solution

The fourth proportional to 647,941.60, 971,199.60 and 227,000.80 is: 340,251.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,941.60 : 971,199.60 = 227,000.80 : x
  2. Step 2: Convert to fraction form
    647,941.60/971,199.60 = 227,000.80/x
  3. Step 3: Cross multiply
    647,941.60x = 971,199.60 × 227,000.80
  4. Step 4: Simplify right side
    647,941.60x = 220,463,086,159.68
  5. Step 5: Solve for x
    x = 220,463,086,159.68/647,941.60
  6. Step 6: Final answer
    x = 340,251.48

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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.