Home / 223,205.22-307,907.73-138,174.66

Finding the Fourth Proportional to 223,205.22, 307,907.73 and 138,174.66

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Solution

The fourth proportional to 223,205.22, 307,907.73 and 138,174.66 is: 190,609.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,205.22 : 307,907.73 = 138,174.66 : x
  2. Step 2: Convert to fraction form
    223,205.22/307,907.73 = 138,174.66/x
  3. Step 3: Cross multiply
    223,205.22x = 307,907.73 × 138,174.66
  4. Step 4: Simplify right side
    223,205.22x = 42,545,045,904.12
  5. Step 5: Solve for x
    x = 42,545,045,904.12/223,205.22
  6. Step 6: Final answer
    x = 190,609.55

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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.