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Finding the Fourth Proportional to 554,536.13, 831,804.39 and 133,812

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Solution

The fourth proportional to 554,536.13, 831,804.39 and 133,812 is: 200,718.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,536.13 : 831,804.39 = 133,812 : x
  2. Step 2: Convert to fraction form
    554,536.13/831,804.39 = 133,812/x
  3. Step 3: Cross multiply
    554,536.13x = 831,804.39 × 133,812
  4. Step 4: Simplify right side
    554,536.13x = 111,305,409,034.68
  5. Step 5: Solve for x
    x = 111,305,409,034.68/554,536.13
  6. Step 6: Final answer
    x = 200,718.05

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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.