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Finding the Fourth Proportional to 275,805.24, 380,611.26 and 154,946.52

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Solution

The fourth proportional to 275,805.24, 380,611.26 and 154,946.52 is: 213,826.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,805.24 : 380,611.26 = 154,946.52 : x
  2. Step 2: Convert to fraction form
    275,805.24/380,611.26 = 154,946.52/x
  3. Step 3: Cross multiply
    275,805.24x = 380,611.26 × 154,946.52
  4. Step 4: Simplify right side
    275,805.24x = 58,974,390,209.82
  5. Step 5: Solve for x
    x = 58,974,390,209.82/275,805.24
  6. Step 6: Final answer
    x = 213,826.21

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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.