Home / 205,938.47-307,655.37-133,299.66

Finding the Fourth Proportional to 205,938.47, 307,655.37 and 133,299.66

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Solution

The fourth proportional to 205,938.47, 307,655.37 and 133,299.66 is: 199,138.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,938.47 : 307,655.37 = 133,299.66 : x
  2. Step 2: Convert to fraction form
    205,938.47/307,655.37 = 133,299.66/x
  3. Step 3: Cross multiply
    205,938.47x = 307,655.37 × 133,299.66
  4. Step 4: Simplify right side
    205,938.47x = 41,010,357,371.88
  5. Step 5: Solve for x
    x = 41,010,357,371.88/205,938.47
  6. Step 6: Final answer
    x = 199,138.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.