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Finding the Fourth Proportional to 490,131.06, 735,484.34 and 205,799.74

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Solution

The fourth proportional to 490,131.06, 735,484.34 and 205,799.74 is: 308,820.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,131.06 : 735,484.34 = 205,799.74 : x
  2. Step 2: Convert to fraction form
    490,131.06/735,484.34 = 205,799.74/x
  3. Step 3: Cross multiply
    490,131.06x = 735,484.34 × 205,799.74
  4. Step 4: Simplify right side
    490,131.06x = 151,362,488,758.96
  5. Step 5: Solve for x
    x = 151,362,488,758.96/490,131.06
  6. Step 6: Final answer
    x = 308,820.44

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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.