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Finding the Fourth Proportional to 327,603.76, 491,350.86 and 90,970.36

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Solution

The fourth proportional to 327,603.76, 491,350.86 and 90,970.36 is: 136,440.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,603.76 : 491,350.86 = 90,970.36 : x
  2. Step 2: Convert to fraction form
    327,603.76/491,350.86 = 90,970.36/x
  3. Step 3: Cross multiply
    327,603.76x = 491,350.86 × 90,970.36
  4. Step 4: Simplify right side
    327,603.76x = 44,698,364,620.51
  5. Step 5: Solve for x
    x = 44,698,364,620.51/327,603.76
  6. Step 6: Final answer
    x = 136,440.33

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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.