Home / 205,090.20-307,635.30-195,413.40

Finding the Fourth Proportional to 205,090.20, 307,635.30 and 195,413.40

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Solution

The fourth proportional to 205,090.20, 307,635.30 and 195,413.40 is: 293,120.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,090.20 : 307,635.30 = 195,413.40 : x
  2. Step 2: Convert to fraction form
    205,090.20/307,635.30 = 195,413.40/x
  3. Step 3: Cross multiply
    205,090.20x = 307,635.30 × 195,413.40
  4. Step 4: Simplify right side
    205,090.20x = 60,116,059,933.02
  5. Step 5: Solve for x
    x = 60,116,059,933.02/205,090.20
  6. Step 6: Final answer
    x = 293,120.10

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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.