Home / 218,297.09-301,249.53-122,803.85

Finding the Fourth Proportional to 218,297.09, 301,249.53 and 122,803.85

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Solution

The fourth proportional to 218,297.09, 301,249.53 and 122,803.85 is: 169,469.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,297.09 : 301,249.53 = 122,803.85 : x
  2. Step 2: Convert to fraction form
    218,297.09/301,249.53 = 122,803.85/x
  3. Step 3: Cross multiply
    218,297.09x = 301,249.53 × 122,803.85
  4. Step 4: Simplify right side
    218,297.09x = 36,994,602,847.81
  5. Step 5: Solve for x
    x = 36,994,602,847.81/218,297.09
  6. Step 6: Final answer
    x = 169,469.06

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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.