Home / 201,540.90-302,311.57-51,782.43

Finding the Fourth Proportional to 201,540.90, 302,311.57 and 51,782.43

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Solution

The fourth proportional to 201,540.90, 302,311.57 and 51,782.43 is: 77,673.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,540.90 : 302,311.57 = 51,782.43 : x
  2. Step 2: Convert to fraction form
    201,540.90/302,311.57 = 51,782.43/x
  3. Step 3: Cross multiply
    201,540.90x = 302,311.57 × 51,782.43
  4. Step 4: Simplify right side
    201,540.90x = 15,654,426,869.44
  5. Step 5: Solve for x
    x = 15,654,426,869.44/201,540.90
  6. Step 6: Final answer
    x = 77,673.70

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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.