Finding the Fourth Proportional to 278,543.16, 418,109.94 and 173,436.12
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Solution
The fourth proportional to 278,543.16, 418,109.94 and 173,436.12 is: 260,337.99
Step by Step Solution
- Step 1: Write the proportion equation
278,543.16 : 418,109.94 = 173,436.12 : x - Step 2: Convert to fraction form
278,543.16/418,109.94 = 173,436.12/x - Step 3: Cross multiply
278,543.16x = 418,109.94 × 173,436.12 - Step 4: Simplify right side
278,543.16x = 72,515,365,727.03 - Step 5: Solve for x
x = 72,515,365,727.03/278,543.16 - Step 6: Final answer
x = 260,337.99
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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.