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Finding the Fourth Proportional to 490,490.86, 735,750.06 and 135,504.94

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Solution

The fourth proportional to 490,490.86, 735,750.06 and 135,504.94 is: 203,261.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,490.86 : 735,750.06 = 135,504.94 : x
  2. Step 2: Convert to fraction form
    490,490.86/735,750.06 = 135,504.94/x
  3. Step 3: Cross multiply
    490,490.86x = 735,750.06 × 135,504.94
  4. Step 4: Simplify right side
    490,490.86x = 99,697,767,735.30
  5. Step 5: Solve for x
    x = 99,697,767,735.30/490,490.86
  6. Step 6: Final answer
    x = 203,261.21

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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.