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Finding the Fourth Proportional to 221,290.33, 305,379.26 and 125,797.03

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Solution

The fourth proportional to 221,290.33, 305,379.26 and 125,797.03 is: 173,599.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,290.33 : 305,379.26 = 125,797.03 : x
  2. Step 2: Convert to fraction form
    221,290.33/305,379.26 = 125,797.03/x
  3. Step 3: Cross multiply
    221,290.33x = 305,379.26 × 125,797.03
  4. Step 4: Simplify right side
    221,290.33x = 38,415,803,931.60
  5. Step 5: Solve for x
    x = 38,415,803,931.60/221,290.33
  6. Step 6: Final answer
    x = 173,599.11

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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.