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Finding the Fourth Proportional to 201,810.70, 302,716.05 and 170,317.90

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Solution

The fourth proportional to 201,810.70, 302,716.05 and 170,317.90 is: 255,476.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,810.70 : 302,716.05 = 170,317.90 : x
  2. Step 2: Convert to fraction form
    201,810.70/302,716.05 = 170,317.90/x
  3. Step 3: Cross multiply
    201,810.70x = 302,716.05 × 170,317.90
  4. Step 4: Simplify right side
    201,810.70x = 51,557,961,932.30
  5. Step 5: Solve for x
    x = 51,557,961,932.30/201,810.70
  6. Step 6: Final answer
    x = 255,476.85

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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.