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Finding the Fourth Proportional to 255,161.30, 352,062.50 and 214,480.05

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Solution

The fourth proportional to 255,161.30, 352,062.50 and 214,480.05 is: 295,931.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,161.30 : 352,062.50 = 214,480.05 : x
  2. Step 2: Convert to fraction form
    255,161.30/352,062.50 = 214,480.05/x
  3. Step 3: Cross multiply
    255,161.30x = 352,062.50 × 214,480.05
  4. Step 4: Simplify right side
    255,161.30x = 75,510,383,139.33
  5. Step 5: Solve for x
    x = 75,510,383,139.33/255,161.30
  6. Step 6: Final answer
    x = 295,931.96

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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.