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Finding the Fourth Proportional to 269,175.30, 403,325.55 and 253,428.90

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Solution

The fourth proportional to 269,175.30, 403,325.55 and 253,428.90 is: 379,731.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,175.30 : 403,325.55 = 253,428.90 : x
  2. Step 2: Convert to fraction form
    269,175.30/403,325.55 = 253,428.90/x
  3. Step 3: Cross multiply
    269,175.30x = 403,325.55 × 253,428.90
  4. Step 4: Simplify right side
    269,175.30x = 102,214,350,478.40
  5. Step 5: Solve for x
    x = 102,214,350,478.40/269,175.30
  6. Step 6: Final answer
    x = 379,731.54

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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.