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Finding the Fourth Proportional to 437,630.60, 656,436.30 and 122,078.60

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Solution

The fourth proportional to 437,630.60, 656,436.30 and 122,078.60 is: 183,115.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,630.60 : 656,436.30 = 122,078.60 : x
  2. Step 2: Convert to fraction form
    437,630.60/656,436.30 = 122,078.60/x
  3. Step 3: Cross multiply
    437,630.60x = 656,436.30 × 122,078.60
  4. Step 4: Simplify right side
    437,630.60x = 80,136,824,493.18
  5. Step 5: Solve for x
    x = 80,136,824,493.18/437,630.60
  6. Step 6: Final answer
    x = 183,115.22

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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.