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Finding the Fourth Proportional to 255,679.86, 352,840.49 and 140,962.58

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Solution

The fourth proportional to 255,679.86, 352,840.49 and 140,962.58 is: 194,529.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,679.86 : 352,840.49 = 140,962.58 : x
  2. Step 2: Convert to fraction form
    255,679.86/352,840.49 = 140,962.58/x
  3. Step 3: Cross multiply
    255,679.86x = 352,840.49 × 140,962.58
  4. Step 4: Simplify right side
    255,679.86x = 49,737,305,798.86
  5. Step 5: Solve for x
    x = 49,737,305,798.86/255,679.86
  6. Step 6: Final answer
    x = 194,529.62

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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.