Finding the Fourth Proportional to 208,437.08, 287,648.48 and 127,909.08
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Solution
The fourth proportional to 208,437.08, 287,648.48 and 127,909.08 is: 176,517.79
Step by Step Solution
- Step 1: Write the proportion equation
208,437.08 : 287,648.48 = 127,909.08 : x - Step 2: Convert to fraction form
208,437.08/287,648.48 = 127,909.08/x - Step 3: Cross multiply
208,437.08x = 287,648.48 × 127,909.08 - Step 4: Simplify right side
208,437.08x = 36,792,852,440.20 - Step 5: Solve for x
x = 36,792,852,440.20/208,437.08 - Step 6: Final answer
x = 176,517.79
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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.