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Finding the Fourth Proportional to 486,371.38, 729,583.61 and 202,090.67

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Solution

The fourth proportional to 486,371.38, 729,583.61 and 202,090.67 is: 303,147.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,371.38 : 729,583.61 = 202,090.67 : x
  2. Step 2: Convert to fraction form
    486,371.38/729,583.61 = 202,090.67/x
  3. Step 3: Cross multiply
    486,371.38x = 729,583.61 × 202,090.67
  4. Step 4: Simplify right side
    486,371.38x = 147,442,042,400.58
  5. Step 5: Solve for x
    x = 147,442,042,400.58/486,371.38
  6. Step 6: Final answer
    x = 303,147.04

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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.