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Finding the Fourth Proportional to 325,306.09, 487,978.26 and 125,627.52

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Solution

The fourth proportional to 325,306.09, 487,978.26 and 125,627.52 is: 188,448.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,306.09 : 487,978.26 = 125,627.52 : x
  2. Step 2: Convert to fraction form
    325,306.09/487,978.26 = 125,627.52/x
  3. Step 3: Cross multiply
    325,306.09x = 487,978.26 × 125,627.52
  4. Step 4: Simplify right side
    325,306.09x = 61,303,498,617.72
  5. Step 5: Solve for x
    x = 61,303,498,617.72/325,306.09
  6. Step 6: Final answer
    x = 188,448.67

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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.