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Finding the Fourth Proportional to 437,640.50, 603,943.90 and 236,436.50

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Solution

The fourth proportional to 437,640.50, 603,943.90 and 236,436.50 is: 326,282.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,640.50 : 603,943.90 = 236,436.50 : x
  2. Step 2: Convert to fraction form
    437,640.50/603,943.90 = 236,436.50/x
  3. Step 3: Cross multiply
    437,640.50x = 603,943.90 × 236,436.50
  4. Step 4: Simplify right side
    437,640.50x = 142,794,381,912.35
  5. Step 5: Solve for x
    x = 142,794,381,912.35/437,640.50
  6. Step 6: Final answer
    x = 326,282.38

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1.5x scale

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.