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Finding the Fourth Proportional to 269,256.80, 403,885.20 and 243,012.80

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Solution

The fourth proportional to 269,256.80, 403,885.20 and 243,012.80 is: 364,519.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,256.80 : 403,885.20 = 243,012.80 : x
  2. Step 2: Convert to fraction form
    269,256.80/403,885.20 = 243,012.80/x
  3. Step 3: Cross multiply
    269,256.80x = 403,885.20 × 243,012.80
  4. Step 4: Simplify right side
    269,256.80x = 98,149,273,330.56
  5. Step 5: Solve for x
    x = 98,149,273,330.56/269,256.80
  6. Step 6: Final answer
    x = 364,519.20

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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.