Home / 401,028.49-553,398.24-228,939.67

Finding the Fourth Proportional to 401,028.49, 553,398.24 and 228,939.67

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Solution

The fourth proportional to 401,028.49, 553,398.24 and 228,939.67 is: 315,924.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,028.49 : 553,398.24 = 228,939.67 : x
  2. Step 2: Convert to fraction form
    401,028.49/553,398.24 = 228,939.67/x
  3. Step 3: Cross multiply
    401,028.49x = 553,398.24 × 228,939.67
  4. Step 4: Simplify right side
    401,028.49x = 126,694,810,444.18
  5. Step 5: Solve for x
    x = 126,694,810,444.18/401,028.49
  6. Step 6: Final answer
    x = 315,924.71

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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.