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Finding the Fourth Proportional to 437,409.87, 603,638.42 and 256,104.83

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Solution

The fourth proportional to 437,409.87, 603,638.42 and 256,104.83 is: 353,432.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,409.87 : 603,638.42 = 256,104.83 : x
  2. Step 2: Convert to fraction form
    437,409.87/603,638.42 = 256,104.83/x
  3. Step 3: Cross multiply
    437,409.87x = 603,638.42 × 256,104.83
  4. Step 4: Simplify right side
    437,409.87x = 154,594,715,164.14
  5. Step 5: Solve for x
    x = 154,594,715,164.14/437,409.87
  6. Step 6: Final answer
    x = 353,432.16

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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.