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Finding the Fourth Proportional to 401,093.67, 553,485.24 and 219,769.50

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Solution

The fourth proportional to 401,093.67, 553,485.24 and 219,769.50 is: 303,268.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,093.67 : 553,485.24 = 219,769.50 : x
  2. Step 2: Convert to fraction form
    401,093.67/553,485.24 = 219,769.50/x
  3. Step 3: Cross multiply
    401,093.67x = 553,485.24 × 219,769.50
  4. Step 4: Simplify right side
    401,093.67x = 121,639,174,452.18
  5. Step 5: Solve for x
    x = 121,639,174,452.18/401,093.67
  6. Step 6: Final answer
    x = 303,268.75

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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.