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Finding the Fourth Proportional to 401,364.52, 553,889.48 and 220,093

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Solution

The fourth proportional to 401,364.52, 553,889.48 and 220,093 is: 303,731.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,364.52 : 553,889.48 = 220,093 : x
  2. Step 2: Convert to fraction form
    401,364.52/553,889.48 = 220,093/x
  3. Step 3: Cross multiply
    401,364.52x = 553,889.48 × 220,093
  4. Step 4: Simplify right side
    401,364.52x = 121,907,197,321.64
  5. Step 5: Solve for x
    x = 121,907,197,321.64/401,364.52
  6. Step 6: Final answer
    x = 303,731.87

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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.