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Finding the Fourth Proportional to 200,325.03, 300,486.63 and 81,996.39

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Solution

The fourth proportional to 200,325.03, 300,486.63 and 81,996.39 is: 122,994.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,325.03 : 300,486.63 = 81,996.39 : x
  2. Step 2: Convert to fraction form
    200,325.03/300,486.63 = 81,996.39/x
  3. Step 3: Cross multiply
    200,325.03x = 300,486.63 × 81,996.39
  4. Step 4: Simplify right side
    200,325.03x = 24,638,818,903.27
  5. Step 5: Solve for x
    x = 24,638,818,903.27/200,325.03
  6. Step 6: Final answer
    x = 122,994.21

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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.