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Finding the Fourth Proportional to 366,258.75, 505,443.75 and 221,064.73

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Solution

The fourth proportional to 366,258.75, 505,443.75 and 221,064.73 is: 305,073.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,258.75 : 505,443.75 = 221,064.73 : x
  2. Step 2: Convert to fraction form
    366,258.75/505,443.75 = 221,064.73/x
  3. Step 3: Cross multiply
    366,258.75x = 505,443.75 × 221,064.73
  4. Step 4: Simplify right side
    366,258.75x = 111,735,784,031.34
  5. Step 5: Solve for x
    x = 111,735,784,031.34/366,258.75
  6. Step 6: Final answer
    x = 305,073.35

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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.