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Finding the Fourth Proportional to 224,662.75, 309,999.36 and 129,151.60

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Solution

The fourth proportional to 224,662.75, 309,999.36 and 129,151.60 is: 178,208.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,662.75 : 309,999.36 = 129,151.60 : x
  2. Step 2: Convert to fraction form
    224,662.75/309,999.36 = 129,151.60/x
  3. Step 3: Cross multiply
    224,662.75x = 309,999.36 × 129,151.60
  4. Step 4: Simplify right side
    224,662.75x = 40,036,913,342.98
  5. Step 5: Solve for x
    x = 40,036,913,342.98/224,662.75
  6. Step 6: Final answer
    x = 178,208.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.