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Finding the Fourth Proportional to 401,759.88, 554,435.44 and 220,488.68

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Solution

The fourth proportional to 401,759.88, 554,435.44 and 220,488.68 is: 304,278.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,759.88 : 554,435.44 = 220,488.68 : x
  2. Step 2: Convert to fraction form
    401,759.88/554,435.44 = 220,488.68/x
  3. Step 3: Cross multiply
    401,759.88x = 554,435.44 × 220,488.68
  4. Step 4: Simplify right side
    401,759.88x = 122,246,735,538.64
  5. Step 5: Solve for x
    x = 122,246,735,538.64/401,759.88
  6. Step 6: Final answer
    x = 304,278.11

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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.