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Finding the Fourth Proportional to 201,885.20, 302,827.80 and 188,763.20

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Solution

The fourth proportional to 201,885.20, 302,827.80 and 188,763.20 is: 283,144.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,885.20 : 302,827.80 = 188,763.20 : x
  2. Step 2: Convert to fraction form
    201,885.20/302,827.80 = 188,763.20/x
  3. Step 3: Cross multiply
    201,885.20x = 302,827.80 × 188,763.20
  4. Step 4: Simplify right side
    201,885.20x = 57,162,744,576.96
  5. Step 5: Solve for x
    x = 57,162,744,576.96/201,885.20
  6. Step 6: Final answer
    x = 283,144.80

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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.