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Finding the Fourth Proportional to 325,285.86, 487,807.44 and 111,993.53

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Solution

The fourth proportional to 325,285.86, 487,807.44 and 111,993.53 is: 167,948.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,285.86 : 487,807.44 = 111,993.53 : x
  2. Step 2: Convert to fraction form
    325,285.86/487,807.44 = 111,993.53/x
  3. Step 3: Cross multiply
    325,285.86x = 487,807.44 × 111,993.53
  4. Step 4: Simplify right side
    325,285.86x = 54,631,274,726.83
  5. Step 5: Solve for x
    x = 54,631,274,726.83/325,285.86
  6. Step 6: Final answer
    x = 167,948.51

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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.