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Finding the Fourth Proportional to 201,215.80, 301,714.35 and 82,899.10

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Solution

The fourth proportional to 201,215.80, 301,714.35 and 82,899.10 is: 124,303.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,215.80 : 301,714.35 = 82,899.10 : x
  2. Step 2: Convert to fraction form
    201,215.80/301,714.35 = 82,899.10/x
  3. Step 3: Cross multiply
    201,215.80x = 301,714.35 × 82,899.10
  4. Step 4: Simplify right side
    201,215.80x = 25,011,848,072.09
  5. Step 5: Solve for x
    x = 25,011,848,072.09/201,215.80
  6. Step 6: Final answer
    x = 124,303.60

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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.