Home / 205,091.80-307,637.70-187,984.60

Finding the Fourth Proportional to 205,091.80, 307,637.70 and 187,984.60

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Solution

The fourth proportional to 205,091.80, 307,637.70 and 187,984.60 is: 281,976.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,091.80 : 307,637.70 = 187,984.60 : x
  2. Step 2: Convert to fraction form
    205,091.80/307,637.70 = 187,984.60/x
  3. Step 3: Cross multiply
    205,091.80x = 307,637.70 × 187,984.60
  4. Step 4: Simplify right side
    205,091.80x = 57,831,149,979.42
  5. Step 5: Solve for x
    x = 57,831,149,979.42/205,091.80
  6. Step 6: Final answer
    x = 281,976.90

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1.5x scale

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.