Home / 395,488.35-545,821.85-223,413.57

Finding the Fourth Proportional to 395,488.35, 545,821.85 and 223,413.57

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Solution

The fourth proportional to 395,488.35, 545,821.85 and 223,413.57 is: 308,337.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,488.35 : 545,821.85 = 223,413.57 : x
  2. Step 2: Convert to fraction form
    395,488.35/545,821.85 = 223,413.57/x
  3. Step 3: Cross multiply
    395,488.35x = 545,821.85 × 223,413.57
  4. Step 4: Simplify right side
    395,488.35x = 121,944,008,092.51
  5. Step 5: Solve for x
    x = 121,944,008,092.51/395,488.35
  6. Step 6: Final answer
    x = 308,337.80

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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.