Home / 400,536.36-552,741.30-221,688.36

Finding the Fourth Proportional to 400,536.36, 552,741.30 and 221,688.36

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Solution

The fourth proportional to 400,536.36, 552,741.30 and 221,688.36 is: 305,930.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,536.36 : 552,741.30 = 221,688.36 : x
  2. Step 2: Convert to fraction form
    400,536.36/552,741.30 = 221,688.36/x
  3. Step 3: Cross multiply
    400,536.36x = 552,741.30 × 221,688.36
  4. Step 4: Simplify right side
    400,536.36x = 122,536,312,301.27
  5. Step 5: Solve for x
    x = 122,536,312,301.27/400,536.36
  6. Step 6: Final answer
    x = 305,930.56

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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.