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Finding the Fourth Proportional to 401,992.88, 554,747.33 and 220,707.86

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Solution

The fourth proportional to 401,992.88, 554,747.33 and 220,707.86 is: 304,575.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,992.88 : 554,747.33 = 220,707.86 : x
  2. Step 2: Convert to fraction form
    401,992.88/554,747.33 = 220,707.86/x
  3. Step 3: Cross multiply
    401,992.88x = 554,747.33 × 220,707.86
  4. Step 4: Simplify right side
    401,992.88x = 122,437,093,823.05
  5. Step 5: Solve for x
    x = 122,437,093,823.05/401,992.88
  6. Step 6: Final answer
    x = 304,575.28

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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.