Finding the Fourth Proportional to 151,368.21, 208,893.33 and 83,389.77
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Solution
The fourth proportional to 151,368.21, 208,893.33 and 83,389.77 is: 115,080.75
Step by Step Solution
- Step 1: Write the proportion equation
151,368.21 : 208,893.33 = 83,389.77 : x - Step 2: Convert to fraction form
151,368.21/208,893.33 = 83,389.77/x - Step 3: Cross multiply
151,368.21x = 208,893.33 × 83,389.77 - Step 4: Simplify right side
151,368.21x = 17,419,566,743.23 - Step 5: Solve for x
x = 17,419,566,743.23/151,368.21 - Step 6: Final answer
x = 115,080.75
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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.