Finding the Fourth Proportional to 207,577.09, 286,459.55 and 122,702.05
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Solution
The fourth proportional to 207,577.09, 286,459.55 and 122,702.05 is: 169,330.70
Step by Step Solution
- Step 1: Write the proportion equation
207,577.09 : 286,459.55 = 122,702.05 : x - Step 2: Convert to fraction form
207,577.09/286,459.55 = 122,702.05/x - Step 3: Cross multiply
207,577.09x = 286,459.55 × 122,702.05 - Step 4: Simplify right side
207,577.09x = 35,149,172,901.53 - Step 5: Solve for x
x = 35,149,172,901.53/207,577.09 - Step 6: Final answer
x = 169,330.70
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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.