Home / 401,101.31-553,429.98-228,964.29

Finding the Fourth Proportional to 401,101.31, 553,429.98 and 228,964.29

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Solution

The fourth proportional to 401,101.31, 553,429.98 and 228,964.29 is: 315,919.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,101.31 : 553,429.98 = 228,964.29 : x
  2. Step 2: Convert to fraction form
    401,101.31/553,429.98 = 228,964.29/x
  3. Step 3: Cross multiply
    401,101.31x = 553,429.98 × 228,964.29
  4. Step 4: Simplify right side
    401,101.31x = 126,715,702,435.41
  5. Step 5: Solve for x
    x = 126,715,702,435.41/401,101.31
  6. Step 6: Final answer
    x = 315,919.45

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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.