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Finding the Fourth Proportional to 401,548.68, 554,144.54 and 220,269.87

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Solution

The fourth proportional to 401,548.68, 554,144.54 and 220,269.87 is: 303,976.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,548.68 : 554,144.54 = 220,269.87 : x
  2. Step 2: Convert to fraction form
    401,548.68/554,144.54 = 220,269.87/x
  3. Step 3: Cross multiply
    401,548.68x = 554,144.54 × 220,269.87
  4. Step 4: Simplify right side
    401,548.68x = 122,061,344,685.66
  5. Step 5: Solve for x
    x = 122,061,344,685.66/401,548.68
  6. Step 6: Final answer
    x = 303,976.46

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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.