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Finding the Fourth Proportional to 236,431.90, 354,064.65 and 157,116.70

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Solution

The fourth proportional to 236,431.90, 354,064.65 and 157,116.70 is: 235,287.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,431.90 : 354,064.65 = 157,116.70 : x
  2. Step 2: Convert to fraction form
    236,431.90/354,064.65 = 157,116.70/x
  3. Step 3: Cross multiply
    236,431.90x = 354,064.65 × 157,116.70
  4. Step 4: Simplify right side
    236,431.90x = 55,629,469,394.66
  5. Step 5: Solve for x
    x = 55,629,469,394.66/236,431.90
  6. Step 6: Final answer
    x = 235,287.49

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