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Finding the Fourth Proportional to 201,508.98, 302,229.45 and 66,531.30

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Solution

The fourth proportional to 201,508.98, 302,229.45 and 66,531.30 is: 99,785.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,508.98 : 302,229.45 = 66,531.30 : x
  2. Step 2: Convert to fraction form
    201,508.98/302,229.45 = 66,531.30/x
  3. Step 3: Cross multiply
    201,508.98x = 302,229.45 × 66,531.30
  4. Step 4: Simplify right side
    201,508.98x = 20,107,718,206.79
  5. Step 5: Solve for x
    x = 20,107,718,206.79/201,508.98
  6. Step 6: Final answer
    x = 99,785.72

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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.