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Finding the Fourth Proportional to 200,323.53, 300,484.38 and 81,994.88

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Solution

The fourth proportional to 200,323.53, 300,484.38 and 81,994.88 is: 122,991.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,323.53 : 300,484.38 = 81,994.88 : x
  2. Step 2: Convert to fraction form
    200,323.53/300,484.38 = 81,994.88/x
  3. Step 3: Cross multiply
    200,323.53x = 300,484.38 × 81,994.88
  4. Step 4: Simplify right side
    200,323.53x = 24,638,181,738.67
  5. Step 5: Solve for x
    x = 24,638,181,738.67/200,323.53
  6. Step 6: Final answer
    x = 122,991.95

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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.