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Finding the Fourth Proportional to 201,018.30, 301,418.10 and 82,701.60

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Solution

The fourth proportional to 201,018.30, 301,418.10 and 82,701.60 is: 124,007.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,018.30 : 301,418.10 = 82,701.60 : x
  2. Step 2: Convert to fraction form
    201,018.30/301,418.10 = 82,701.60/x
  3. Step 3: Cross multiply
    201,018.30x = 301,418.10 × 82,701.60
  4. Step 4: Simplify right side
    201,018.30x = 24,927,759,138.96
  5. Step 5: Solve for x
    x = 24,927,759,138.96/201,018.30
  6. Step 6: Final answer
    x = 124,007.41

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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.