Finding the Fourth Proportional to 268,394.06, 402,592.82 and 78,853.66
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Solution
The fourth proportional to 268,394.06, 402,592.82 and 78,853.66 is: 118,280.99
Step by Step Solution
- Step 1: Write the proportion equation
268,394.06 : 402,592.82 = 78,853.66 : x - Step 2: Convert to fraction form
268,394.06/402,592.82 = 78,853.66/x - Step 3: Cross multiply
268,394.06x = 402,592.82 × 78,853.66 - Step 4: Simplify right side
268,394.06x = 31,745,915,945.97 - Step 5: Solve for x
x = 31,745,915,945.97/268,394.06 - Step 6: Final answer
x = 118,280.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.