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Finding the Fourth Proportional to 605,339.45, 907,693.88 and 225,948.21

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Solution

The fourth proportional to 605,339.45, 907,693.88 and 225,948.21 is: 338,804.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,339.45 : 907,693.88 = 225,948.21 : x
  2. Step 2: Convert to fraction form
    605,339.45/907,693.88 = 225,948.21/x
  3. Step 3: Cross multiply
    605,339.45x = 907,693.88 × 225,948.21
  4. Step 4: Simplify right side
    605,339.45x = 205,091,807,413.96
  5. Step 5: Solve for x
    x = 205,091,807,413.96/605,339.45
  6. Step 6: Final answer
    x = 338,804.63

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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.