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Finding the Fourth Proportional to 151,781.94, 228,171.06 and 140,821.02

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Solution

The fourth proportional to 151,781.94, 228,171.06 and 140,821.02 is: 211,693.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,781.94 : 228,171.06 = 140,821.02 : x
  2. Step 2: Convert to fraction form
    151,781.94/228,171.06 = 140,821.02/x
  3. Step 3: Cross multiply
    151,781.94x = 228,171.06 × 140,821.02
  4. Step 4: Simplify right side
    151,781.94x = 32,131,281,403.68
  5. Step 5: Solve for x
    x = 32,131,281,403.68/151,781.94
  6. Step 6: Final answer
    x = 211,693.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.