Home / 389,252.40-537,172.20-228,202.80

Finding the Fourth Proportional to 389,252.40, 537,172.20 and 228,202.80

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Solution

The fourth proportional to 389,252.40, 537,172.20 and 228,202.80 is: 314,922.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,252.40 : 537,172.20 = 228,202.80 : x
  2. Step 2: Convert to fraction form
    389,252.40/537,172.20 = 228,202.80/x
  3. Step 3: Cross multiply
    389,252.40x = 537,172.20 × 228,202.80
  4. Step 4: Simplify right side
    389,252.40x = 122,584,200,122.16
  5. Step 5: Solve for x
    x = 122,584,200,122.16/389,252.40
  6. Step 6: Final answer
    x = 314,922.14

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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.