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Finding the Fourth Proportional to 255,996.60, 353,272.84 and 141,276.32

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Solution

The fourth proportional to 255,996.60, 353,272.84 and 141,276.32 is: 194,959.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,996.60 : 353,272.84 = 141,276.32 : x
  2. Step 2: Convert to fraction form
    255,996.60/353,272.84 = 141,276.32/x
  3. Step 3: Cross multiply
    255,996.60x = 353,272.84 × 141,276.32
  4. Step 4: Simplify right side
    255,996.60x = 49,909,086,791.15
  5. Step 5: Solve for x
    x = 49,909,086,791.15/255,996.60
  6. Step 6: Final answer
    x = 194,959.96

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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.