Home / 205,656.20-308,945.10-197,259.40

Finding the Fourth Proportional to 205,656.20, 308,945.10 and 197,259.40

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Solution

The fourth proportional to 205,656.20, 308,945.10 and 197,259.40 is: 296,331.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,656.20 : 308,945.10 = 197,259.40 : x
  2. Step 2: Convert to fraction form
    205,656.20/308,945.10 = 197,259.40/x
  3. Step 3: Cross multiply
    205,656.20x = 308,945.10 × 197,259.40
  4. Step 4: Simplify right side
    205,656.20x = 60,942,325,058.94
  5. Step 5: Solve for x
    x = 60,942,325,058.94/205,656.20
  6. Step 6: Final answer
    x = 296,331.09

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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.