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Finding the Fourth Proportional to 201,481.30, 302,135.55 and 101,602.90

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Solution

The fourth proportional to 201,481.30, 302,135.55 and 101,602.90 is: 152,360.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,481.30 : 302,135.55 = 101,602.90 : x
  2. Step 2: Convert to fraction form
    201,481.30/302,135.55 = 101,602.90/x
  3. Step 3: Cross multiply
    201,481.30x = 302,135.55 × 101,602.90
  4. Step 4: Simplify right side
    201,481.30x = 30,697,848,073.10
  5. Step 5: Solve for x
    x = 30,697,848,073.10/201,481.30
  6. Step 6: Final answer
    x = 152,360.78

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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.