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Finding the Fourth Proportional to 311,517.26, 429,894.21 and 168,277.31

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Solution

The fourth proportional to 311,517.26, 429,894.21 and 168,277.31 is: 232,222.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,517.26 : 429,894.21 = 168,277.31 : x
  2. Step 2: Convert to fraction form
    311,517.26/429,894.21 = 168,277.31/x
  3. Step 3: Cross multiply
    311,517.26x = 429,894.21 × 168,277.31
  4. Step 4: Simplify right side
    311,517.26x = 72,341,439,537.60
  5. Step 5: Solve for x
    x = 72,341,439,537.60/311,517.26
  6. Step 6: Final answer
    x = 232,222.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.