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Finding the Fourth Proportional to 201,664.60, 302,496.90 and 170,171.80

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Solution

The fourth proportional to 201,664.60, 302,496.90 and 170,171.80 is: 255,257.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,664.60 : 302,496.90 = 170,171.80 : x
  2. Step 2: Convert to fraction form
    201,664.60/302,496.90 = 170,171.80/x
  3. Step 3: Cross multiply
    201,664.60x = 302,496.90 × 170,171.80
  4. Step 4: Simplify right side
    201,664.60x = 51,476,441,967.42
  5. Step 5: Solve for x
    x = 51,476,441,967.42/201,664.60
  6. Step 6: Final answer
    x = 255,257.70

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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.