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Finding the Fourth Proportional to 401,759.52, 554,436.51 and 220,460.88

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Solution

The fourth proportional to 401,759.52, 554,436.51 and 220,460.88 is: 304,240.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,759.52 : 554,436.51 = 220,460.88 : x
  2. Step 2: Convert to fraction form
    401,759.52/554,436.51 = 220,460.88/x
  3. Step 3: Cross multiply
    401,759.52x = 554,436.51 × 220,460.88
  4. Step 4: Simplify right side
    401,759.52x = 122,231,560,898.73
  5. Step 5: Solve for x
    x = 122,231,560,898.73/401,759.52
  6. Step 6: Final answer
    x = 304,240.61

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1.5x scale

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.