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Finding the Fourth Proportional to 201,213.03, 301,772.64 and 74,912.76

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Solution

The fourth proportional to 201,213.03, 301,772.64 and 74,912.76 is: 112,351.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,213.03 : 301,772.64 = 74,912.76 : x
  2. Step 2: Convert to fraction form
    201,213.03/301,772.64 = 74,912.76/x
  3. Step 3: Cross multiply
    201,213.03x = 301,772.64 × 74,912.76
  4. Step 4: Simplify right side
    201,213.03x = 22,606,621,354.89
  5. Step 5: Solve for x
    x = 22,606,621,354.89/201,213.03
  6. Step 6: Final answer
    x = 112,351.68

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1.5x scale

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.