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Finding the Fourth Proportional to 279,465.50, 385,759.60 and 166,285.82

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Solution

The fourth proportional to 279,465.50, 385,759.60 and 166,285.82 is: 229,532.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,465.50 : 385,759.60 = 166,285.82 : x
  2. Step 2: Convert to fraction form
    279,465.50/385,759.60 = 166,285.82/x
  3. Step 3: Cross multiply
    279,465.50x = 385,759.60 × 166,285.82
  4. Step 4: Simplify right side
    279,465.50x = 64,146,351,408.87
  5. Step 5: Solve for x
    x = 64,146,351,408.87/279,465.50
  6. Step 6: Final answer
    x = 229,532.27

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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.