Home / 409,394.22-565,005.57-228,135.66

Finding the Fourth Proportional to 409,394.22, 565,005.57 and 228,135.66

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Solution

The fourth proportional to 409,394.22, 565,005.57 and 228,135.66 is: 314,850.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,394.22 : 565,005.57 = 228,135.66 : x
  2. Step 2: Convert to fraction form
    409,394.22/565,005.57 = 228,135.66/x
  3. Step 3: Cross multiply
    409,394.22x = 565,005.57 × 228,135.66
  4. Step 4: Simplify right side
    409,394.22x = 128,897,918,615.63
  5. Step 5: Solve for x
    x = 128,897,918,615.63/409,394.22
  6. Step 6: Final answer
    x = 314,850.36

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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.