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Finding the Fourth Proportional to 307,419.89, 424,250.00 and 178,348.62

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Solution

The fourth proportional to 307,419.89, 424,250.00 and 178,348.62 is: 246,127.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,419.89 : 424,250.00 = 178,348.62 : x
  2. Step 2: Convert to fraction form
    307,419.89/424,250.00 = 178,348.62/x
  3. Step 3: Cross multiply
    307,419.89x = 424,250.00 × 178,348.62
  4. Step 4: Simplify right side
    307,419.89x = 75,664,401,143.26
  5. Step 5: Solve for x
    x = 75,664,401,143.26/307,419.89
  6. Step 6: Final answer
    x = 246,127.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.