Finding the Fourth Proportional to 217,334.21, 299,928.99 and 126,675.56
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Solution
The fourth proportional to 217,334.21, 299,928.99 and 126,675.56 is: 174,816.80
Step by Step Solution
- Step 1: Write the proportion equation
217,334.21 : 299,928.99 = 126,675.56 : x - Step 2: Convert to fraction form
217,334.21/299,928.99 = 126,675.56/x - Step 3: Cross multiply
217,334.21x = 299,928.99 × 126,675.56 - Step 4: Simplify right side
217,334.21x = 37,993,671,268.84 - Step 5: Solve for x
x = 37,993,671,268.84/217,334.21 - Step 6: Final answer
x = 174,816.80
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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.