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Finding the Fourth Proportional to 307,329.45, 424,113.06 and 178,294.02

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Solution

The fourth proportional to 307,329.45, 424,113.06 and 178,294.02 is: 246,044.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,329.45 : 424,113.06 = 178,294.02 : x
  2. Step 2: Convert to fraction form
    307,329.45/424,113.06 = 178,294.02/x
  3. Step 3: Cross multiply
    307,329.45x = 424,113.06 × 178,294.02
  4. Step 4: Simplify right side
    307,329.45x = 75,616,822,401.90
  5. Step 5: Solve for x
    x = 75,616,822,401.90/307,329.45
  6. Step 6: Final answer
    x = 246,044.83

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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.