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Finding the Fourth Proportional to 255,079.88, 352,008.58 and 140,365.52

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Solution

The fourth proportional to 255,079.88, 352,008.58 and 140,365.52 is: 193,703.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,079.88 : 352,008.58 = 140,365.52 : x
  2. Step 2: Convert to fraction form
    255,079.88/352,008.58 = 140,365.52/x
  3. Step 3: Cross multiply
    255,079.88x = 352,008.58 × 140,365.52
  4. Step 4: Simplify right side
    255,079.88x = 49,409,867,376.16
  5. Step 5: Solve for x
    x = 49,409,867,376.16/255,079.88
  6. Step 6: Final answer
    x = 193,703.51

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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.