Finding the Fourth Proportional to 201,505.21, 278,077.21 and 110,859.23
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Solution
The fourth proportional to 201,505.21, 278,077.21 and 110,859.23 is: 152,985.75
Step by Step Solution
- Step 1: Write the proportion equation
201,505.21 : 278,077.21 = 110,859.23 : x - Step 2: Convert to fraction form
201,505.21/278,077.21 = 110,859.23/x - Step 3: Cross multiply
201,505.21x = 278,077.21 × 110,859.23 - Step 4: Simplify right side
201,505.21x = 30,827,425,799.19 - Step 5: Solve for x
x = 30,827,425,799.19/201,505.21 - Step 6: Final answer
x = 152,985.75
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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.