Home / 218,716.26-301,821-133,833.30

Finding the Fourth Proportional to 218,716.26, 301,821 and 133,833.30

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Solution

The fourth proportional to 218,716.26, 301,821 and 133,833.30 is: 184,685.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,716.26 : 301,821 = 133,833.30 : x
  2. Step 2: Convert to fraction form
    218,716.26/301,821 = 133,833.30/x
  3. Step 3: Cross multiply
    218,716.26x = 301,821 × 133,833.30
  4. Step 4: Simplify right side
    218,716.26x = 40,393,700,439.30
  5. Step 5: Solve for x
    x = 40,393,700,439.30/218,716.26
  6. Step 6: Final answer
    x = 184,685.40

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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.