Finding the Fourth Proportional to 208,331.94, 287,503.98 and 117,691.74
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Solution
The fourth proportional to 208,331.94, 287,503.98 and 117,691.74 is: 162,417.94
Step by Step Solution
- Step 1: Write the proportion equation
208,331.94 : 287,503.98 = 117,691.74 : x - Step 2: Convert to fraction form
208,331.94/287,503.98 = 117,691.74/x - Step 3: Cross multiply
208,331.94x = 287,503.98 × 117,691.74 - Step 4: Simplify right side
208,331.94x = 33,836,843,663.13 - Step 5: Solve for x
x = 33,836,843,663.13/208,331.94 - Step 6: Final answer
x = 162,417.94
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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.