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Finding the Fourth Proportional to 255,536.85, 352,640.13 and 140,815.47

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Solution

The fourth proportional to 255,536.85, 352,640.13 and 140,815.47 is: 194,324.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,536.85 : 352,640.13 = 140,815.47 : x
  2. Step 2: Convert to fraction form
    255,536.85/352,640.13 = 140,815.47/x
  3. Step 3: Cross multiply
    255,536.85x = 352,640.13 × 140,815.47
  4. Step 4: Simplify right side
    255,536.85x = 49,657,184,504.15
  5. Step 5: Solve for x
    x = 49,657,184,504.15/255,536.85
  6. Step 6: Final answer
    x = 194,324.94

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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.