Home / 380,888.41-525,622.08-208,815.85

Finding the Fourth Proportional to 380,888.41, 525,622.08 and 208,815.85

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Solution

The fourth proportional to 380,888.41, 525,622.08 and 208,815.85 is: 288,163.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,888.41 : 525,622.08 = 208,815.85 : x
  2. Step 2: Convert to fraction form
    380,888.41/525,622.08 = 208,815.85/x
  3. Step 3: Cross multiply
    380,888.41x = 525,622.08 × 208,815.85
  4. Step 4: Simplify right side
    380,888.41x = 109,758,221,413.97
  5. Step 5: Solve for x
    x = 109,758,221,413.97/380,888.41
  6. Step 6: Final answer
    x = 288,163.72

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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.