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Finding the Fourth Proportional to 340,906.52, 511,310.54 and 104,185.64

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Solution

The fourth proportional to 340,906.52, 511,310.54 and 104,185.64 is: 156,263.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,906.52 : 511,310.54 = 104,185.64 : x
  2. Step 2: Convert to fraction form
    340,906.52/511,310.54 = 104,185.64/x
  3. Step 3: Cross multiply
    340,906.52x = 511,310.54 × 104,185.64
  4. Step 4: Simplify right side
    340,906.52x = 53,271,212,771.16
  5. Step 5: Solve for x
    x = 53,271,212,771.16/340,906.52
  6. Step 6: Final answer
    x = 156,263.40

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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.