Home / 318,060.72-438,987.62-188,974.35

Finding the Fourth Proportional to 318,060.72, 438,987.62 and 188,974.35

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Solution

The fourth proportional to 318,060.72, 438,987.62 and 188,974.35 is: 260,822.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,060.72 : 438,987.62 = 188,974.35 : x
  2. Step 2: Convert to fraction form
    318,060.72/438,987.62 = 188,974.35/x
  3. Step 3: Cross multiply
    318,060.72x = 438,987.62 × 188,974.35
  4. Step 4: Simplify right side
    318,060.72x = 82,957,400,619.98
  5. Step 5: Solve for x
    x = 82,957,400,619.98/318,060.72
  6. Step 6: Final answer
    x = 260,822.53

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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.