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Finding the Fourth Proportional to 198,297.85, 273,655.79 and 107,657.64

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Solution

The fourth proportional to 198,297.85, 273,655.79 and 107,657.64 is: 148,570.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,297.85 : 273,655.79 = 107,657.64 : x
  2. Step 2: Convert to fraction form
    198,297.85/273,655.79 = 107,657.64/x
  3. Step 3: Cross multiply
    198,297.85x = 273,655.79 × 107,657.64
  4. Step 4: Simplify right side
    198,297.85x = 29,461,135,424.60
  5. Step 5: Solve for x
    x = 29,461,135,424.60/198,297.85
  6. Step 6: Final answer
    x = 148,570.12

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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.