Finding the Fourth Proportional to 208,379.79, 287,547.03 and 117,743.63
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Solution
The fourth proportional to 208,379.79, 287,547.03 and 117,743.63 is: 162,476.55
Step by Step Solution
- Step 1: Write the proportion equation
208,379.79 : 287,547.03 = 117,743.63 : x - Step 2: Convert to fraction form
208,379.79/287,547.03 = 117,743.63/x - Step 3: Cross multiply
208,379.79x = 287,547.03 × 117,743.63 - Step 4: Simplify right side
208,379.79x = 33,856,829,670.18 - Step 5: Solve for x
x = 33,856,829,670.18/208,379.79 - Step 6: Final answer
x = 162,476.55
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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.