Home / 389,489.19-537,584.76-228,396.14

Finding the Fourth Proportional to 389,489.19, 537,584.76 and 228,396.14

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Solution

The fourth proportional to 389,489.19, 537,584.76 and 228,396.14 is: 315,239.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,489.19 : 537,584.76 = 228,396.14 : x
  2. Step 2: Convert to fraction form
    389,489.19/537,584.76 = 228,396.14/x
  3. Step 3: Cross multiply
    389,489.19x = 537,584.76 × 228,396.14
  4. Step 4: Simplify right side
    389,489.19x = 122,782,284,106.83
  5. Step 5: Solve for x
    x = 122,782,284,106.83/389,489.19
  6. Step 6: Final answer
    x = 315,239.26

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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.