Home / 401,343.11-553,878.38-222,495.11

Finding the Fourth Proportional to 401,343.11, 553,878.38 and 222,495.11

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Solution

The fourth proportional to 401,343.11, 553,878.38 and 222,495.11 is: 307,057.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,343.11 : 553,878.38 = 222,495.11 : x
  2. Step 2: Convert to fraction form
    401,343.11/553,878.38 = 222,495.11/x
  3. Step 3: Cross multiply
    401,343.11x = 553,878.38 × 222,495.11
  4. Step 4: Simplify right side
    401,343.11x = 123,235,229,972.25
  5. Step 5: Solve for x
    x = 123,235,229,972.25/401,343.11
  6. Step 6: Final answer
    x = 307,057.05

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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.