Home / 389,727.36-537,825.42-210,879.36

Finding the Fourth Proportional to 389,727.36, 537,825.42 and 210,879.36

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Solution

The fourth proportional to 389,727.36, 537,825.42 and 210,879.36 is: 291,014.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,727.36 : 537,825.42 = 210,879.36 : x
  2. Step 2: Convert to fraction form
    389,727.36/537,825.42 = 210,879.36/x
  3. Step 3: Cross multiply
    389,727.36x = 537,825.42 × 210,879.36
  4. Step 4: Simplify right side
    389,727.36x = 113,416,280,361.33
  5. Step 5: Solve for x
    x = 113,416,280,361.33/389,727.36
  6. Step 6: Final answer
    x = 291,014.42

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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.