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Finding the Fourth Proportional to 401,993.88, 554,748.71 and 220,708.86

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Solution

The fourth proportional to 401,993.88, 554,748.71 and 220,708.86 is: 304,576.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,993.88 : 554,748.71 = 220,708.86 : x
  2. Step 2: Convert to fraction form
    401,993.88/554,748.71 = 220,708.86/x
  3. Step 3: Cross multiply
    401,993.88x = 554,748.71 × 220,708.86
  4. Step 4: Simplify right side
    401,993.88x = 122,437,955,370.57
  5. Step 5: Solve for x
    x = 122,437,955,370.57/401,993.88
  6. Step 6: Final answer
    x = 304,576.67

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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.