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Finding the Fourth Proportional to 255,540.32, 352,640.88 and 140,829.59

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Solution

The fourth proportional to 255,540.32, 352,640.88 and 140,829.59 is: 194,342.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,540.32 : 352,640.88 = 140,829.59 : x
  2. Step 2: Convert to fraction form
    255,540.32/352,640.88 = 140,829.59/x
  3. Step 3: Cross multiply
    255,540.32x = 352,640.88 × 140,829.59
  4. Step 4: Simplify right side
    255,540.32x = 49,662,269,136.51
  5. Step 5: Solve for x
    x = 49,662,269,136.51/255,540.32
  6. Step 6: Final answer
    x = 194,342.21

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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.