Home / 431,045.82-646,413.21-181,747.26

Finding the Fourth Proportional to 431,045.82, 646,413.21 and 181,747.26

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Solution

The fourth proportional to 431,045.82, 646,413.21 and 181,747.26 is: 272,555.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,045.82 : 646,413.21 = 181,747.26 : x
  2. Step 2: Convert to fraction form
    431,045.82/646,413.21 = 181,747.26/x
  3. Step 3: Cross multiply
    431,045.82x = 646,413.21 × 181,747.26
  4. Step 4: Simplify right side
    431,045.82x = 117,483,829,745.31
  5. Step 5: Solve for x
    x = 117,483,829,745.31/431,045.82
  6. Step 6: Final answer
    x = 272,555.32

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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.