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Finding the Fourth Proportional to 402,600.45, 603,999.56 and 200,292.01

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Solution

The fourth proportional to 402,600.45, 603,999.56 and 200,292.01 is: 300,487.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,600.45 : 603,999.56 = 200,292.01 : x
  2. Step 2: Convert to fraction form
    402,600.45/603,999.56 = 200,292.01/x
  3. Step 3: Cross multiply
    402,600.45x = 603,999.56 × 200,292.01
  4. Step 4: Simplify right side
    402,600.45x = 120,976,285,911.52
  5. Step 5: Solve for x
    x = 120,976,285,911.52/402,600.45
  6. Step 6: Final answer
    x = 300,487.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.