Home / 401,102.31-553,431.36-228,965.29

Finding the Fourth Proportional to 401,102.31, 553,431.36 and 228,965.29

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Solution

The fourth proportional to 401,102.31, 553,431.36 and 228,965.29 is: 315,920.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,102.31 : 553,431.36 = 228,965.29 : x
  2. Step 2: Convert to fraction form
    401,102.31/553,431.36 = 228,965.29/x
  3. Step 3: Cross multiply
    401,102.31x = 553,431.36 × 228,965.29
  4. Step 4: Simplify right side
    401,102.31x = 126,716,571,837.49
  5. Step 5: Solve for x
    x = 126,716,571,837.49/401,102.31
  6. Step 6: Final answer
    x = 315,920.82

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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.