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Finding the Fourth Proportional to 638,164.84, 957,413.31 and 238,837

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Solution

The fourth proportional to 638,164.84, 957,413.31 and 238,837 is: 358,317.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,164.84 : 957,413.31 = 238,837 : x
  2. Step 2: Convert to fraction form
    638,164.84/957,413.31 = 238,837/x
  3. Step 3: Cross multiply
    638,164.84x = 957,413.31 × 238,837
  4. Step 4: Simplify right side
    638,164.84x = 228,665,722,720.47
  5. Step 5: Solve for x
    x = 228,665,722,720.47/638,164.84
  6. Step 6: Final answer
    x = 358,317.65

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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.