Home / 208,356.06-288,090.36-198,777

Finding the Fourth Proportional to 208,356.06, 288,090.36 and 198,777

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Solution

The fourth proportional to 208,356.06, 288,090.36 and 198,777 is: 274,845.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,356.06 : 288,090.36 = 198,777 : x
  2. Step 2: Convert to fraction form
    208,356.06/288,090.36 = 198,777/x
  3. Step 3: Cross multiply
    208,356.06x = 288,090.36 × 198,777
  4. Step 4: Simplify right side
    208,356.06x = 57,265,737,489.72
  5. Step 5: Solve for x
    x = 57,265,737,489.72/208,356.06
  6. Step 6: Final answer
    x = 274,845.56

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1.5x scale

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.