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Finding the Fourth Proportional to 253,969.89, 380,620.58 and 141,702.95

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Solution

The fourth proportional to 253,969.89, 380,620.58 and 141,702.95 is: 212,367.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,969.89 : 380,620.58 = 141,702.95 : x
  2. Step 2: Convert to fraction form
    253,969.89/380,620.58 = 141,702.95/x
  3. Step 3: Cross multiply
    253,969.89x = 380,620.58 × 141,702.95
  4. Step 4: Simplify right side
    253,969.89x = 53,935,056,405.09
  5. Step 5: Solve for x
    x = 53,935,056,405.09/253,969.89
  6. Step 6: Final answer
    x = 212,367.92

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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.