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Finding the Fourth Proportional to 353,137.60, 529,706.40 and 253,086.40

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Solution

The fourth proportional to 353,137.60, 529,706.40 and 253,086.40 is: 379,629.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,137.60 : 529,706.40 = 253,086.40 : x
  2. Step 2: Convert to fraction form
    353,137.60/529,706.40 = 253,086.40/x
  3. Step 3: Cross multiply
    353,137.60x = 529,706.40 × 253,086.40
  4. Step 4: Simplify right side
    353,137.60x = 134,061,485,832.96
  5. Step 5: Solve for x
    x = 134,061,485,832.96/353,137.60
  6. Step 6: Final answer
    x = 379,629.60

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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.