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Finding the Fourth Proportional to 360,896.76, 540,266.58 and 218,310.57

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Solution

The fourth proportional to 360,896.76, 540,266.58 and 218,310.57 is: 326,813.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,896.76 : 540,266.58 = 218,310.57 : x
  2. Step 2: Convert to fraction form
    360,896.76/540,266.58 = 218,310.57/x
  3. Step 3: Cross multiply
    360,896.76x = 540,266.58 × 218,310.57
  4. Step 4: Simplify right side
    360,896.76x = 117,945,905,031.75
  5. Step 5: Solve for x
    x = 117,945,905,031.75/360,896.76
  6. Step 6: Final answer
    x = 326,813.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.