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Finding the Fourth Proportional to 279,338.54, 385,528.69 and 164,580.50

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Solution

The fourth proportional to 279,338.54, 385,528.69 and 164,580.50 is: 227,145.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,338.54 : 385,528.69 = 164,580.50 : x
  2. Step 2: Convert to fraction form
    279,338.54/385,528.69 = 164,580.50/x
  3. Step 3: Cross multiply
    279,338.54x = 385,528.69 × 164,580.50
  4. Step 4: Simplify right side
    279,338.54x = 63,450,504,564.55
  5. Step 5: Solve for x
    x = 63,450,504,564.55/279,338.54
  6. Step 6: Final answer
    x = 227,145.54

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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.