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Finding the Fourth Proportional to 401,563.92, 554,163.36 and 220,264

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Solution

The fourth proportional to 401,563.92, 554,163.36 and 220,264 is: 303,967.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,563.92 : 554,163.36 = 220,264 : x
  2. Step 2: Convert to fraction form
    401,563.92/554,163.36 = 220,264/x
  3. Step 3: Cross multiply
    401,563.92x = 554,163.36 × 220,264
  4. Step 4: Simplify right side
    401,563.92x = 122,062,238,327.04
  5. Step 5: Solve for x
    x = 122,062,238,327.04/401,563.92
  6. Step 6: Final answer
    x = 303,967.15

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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.