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Finding the Fourth Proportional to 275,573.17, 380,287.74 and 154,711.45

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Solution

The fourth proportional to 275,573.17, 380,287.74 and 154,711.45 is: 213,499.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,573.17 : 380,287.74 = 154,711.45 : x
  2. Step 2: Convert to fraction form
    275,573.17/380,287.74 = 154,711.45/x
  3. Step 3: Cross multiply
    275,573.17x = 380,287.74 × 154,711.45
  4. Step 4: Simplify right side
    275,573.17x = 58,834,867,672.62
  5. Step 5: Solve for x
    x = 58,834,867,672.62/275,573.17
  6. Step 6: Final answer
    x = 213,499.99

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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.