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Finding the Fourth Proportional to 325,635.20, 488,222.40 and 125,878.40

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Solution

The fourth proportional to 325,635.20, 488,222.40 and 125,878.40 is: 188,728.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,635.20 : 488,222.40 = 125,878.40 : x
  2. Step 2: Convert to fraction form
    325,635.20/488,222.40 = 125,878.40/x
  3. Step 3: Cross multiply
    325,635.20x = 488,222.40 × 125,878.40
  4. Step 4: Simplify right side
    325,635.20x = 61,456,654,556.16
  5. Step 5: Solve for x
    x = 61,456,654,556.16/325,635.20
  6. Step 6: Final answer
    x = 188,728.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.