Home / 386,589.37-533,493.16-225,413.29

Finding the Fourth Proportional to 386,589.37, 533,493.16 and 225,413.29

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Solution

The fourth proportional to 386,589.37, 533,493.16 and 225,413.29 is: 311,070.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,589.37 : 533,493.16 = 225,413.29 : x
  2. Step 2: Convert to fraction form
    386,589.37/533,493.16 = 225,413.29/x
  3. Step 3: Cross multiply
    386,589.37x = 533,493.16 × 225,413.29
  4. Step 4: Simplify right side
    386,589.37x = 120,256,448,388.10
  5. Step 5: Solve for x
    x = 120,256,448,388.10/386,589.37
  6. Step 6: Final answer
    x = 311,070.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.