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Finding the Fourth Proportional to 437,638, 603,940.44 and 236,434

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Solution

The fourth proportional to 437,638, 603,940.44 and 236,434 is: 326,278.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,638 : 603,940.44 = 236,434 : x
  2. Step 2: Convert to fraction form
    437,638/603,940.44 = 236,434/x
  3. Step 3: Cross multiply
    437,638x = 603,940.44 × 236,434
  4. Step 4: Simplify right side
    437,638x = 142,792,053,990.96
  5. Step 5: Solve for x
    x = 142,792,053,990.96/437,638
  6. Step 6: Final answer
    x = 326,278.92

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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.