Home / 307,573.11-461,201.67-139,002.12

Finding the Fourth Proportional to 307,573.11, 461,201.67 and 139,002.12

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Solution

The fourth proportional to 307,573.11, 461,201.67 and 139,002.12 is: 208,431.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,573.11 : 461,201.67 = 139,002.12 : x
  2. Step 2: Convert to fraction form
    307,573.11/461,201.67 = 139,002.12/x
  3. Step 3: Cross multiply
    307,573.11x = 461,201.67 × 139,002.12
  4. Step 4: Simplify right side
    307,573.11x = 64,108,009,877.54
  5. Step 5: Solve for x
    x = 64,108,009,877.54/307,573.11
  6. Step 6: Final answer
    x = 208,431.78

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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.