Home / 223,849.31-309,117.30-142,203.93

Finding the Fourth Proportional to 223,849.31, 309,117.30 and 142,203.93

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Solution

The fourth proportional to 223,849.31, 309,117.30 and 142,203.93 is: 196,371.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,849.31 : 309,117.30 = 142,203.93 : x
  2. Step 2: Convert to fraction form
    223,849.31/309,117.30 = 142,203.93/x
  3. Step 3: Cross multiply
    223,849.31x = 309,117.30 × 142,203.93
  4. Step 4: Simplify right side
    223,849.31x = 43,957,694,890.99
  5. Step 5: Solve for x
    x = 43,957,694,890.99/223,849.31
  6. Step 6: Final answer
    x = 196,371.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.