Home / 371,971.47-513,414.77-228,859.66

Finding the Fourth Proportional to 371,971.47, 513,414.77 and 228,859.66

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Solution

The fourth proportional to 371,971.47, 513,414.77 and 228,859.66 is: 315,884.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,971.47 : 513,414.77 = 228,859.66 : x
  2. Step 2: Convert to fraction form
    371,971.47/513,414.77 = 228,859.66/x
  3. Step 3: Cross multiply
    371,971.47x = 513,414.77 × 228,859.66
  4. Step 4: Simplify right side
    371,971.47x = 117,499,929,701.18
  5. Step 5: Solve for x
    x = 117,499,929,701.18/371,971.47
  6. Step 6: Final answer
    x = 315,884.25

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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.