Home / 312,844.16-431,611.80-205,472.36

Finding the Fourth Proportional to 312,844.16, 431,611.80 and 205,472.36

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Solution

The fourth proportional to 312,844.16, 431,611.80 and 205,472.36 is: 283,477.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,844.16 : 431,611.80 = 205,472.36 : x
  2. Step 2: Convert to fraction form
    312,844.16/431,611.80 = 205,472.36/x
  3. Step 3: Cross multiply
    312,844.16x = 431,611.80 × 205,472.36
  4. Step 4: Simplify right side
    312,844.16x = 88,684,295,149.85
  5. Step 5: Solve for x
    x = 88,684,295,149.85/312,844.16
  6. Step 6: Final answer
    x = 283,477.55

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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.