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Finding the Fourth Proportional to 267,545, 369,212.10 and 154,367.75

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Solution

The fourth proportional to 267,545, 369,212.10 and 154,367.75 is: 213,027.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,545 : 369,212.10 = 154,367.75 : x
  2. Step 2: Convert to fraction form
    267,545/369,212.10 = 154,367.75/x
  3. Step 3: Cross multiply
    267,545x = 369,212.10 × 154,367.75
  4. Step 4: Simplify right side
    267,545x = 56,994,441,149.78
  5. Step 5: Solve for x
    x = 56,994,441,149.78/267,545
  6. Step 6: Final answer
    x = 213,027.50

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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.