Finding the Fourth Proportional to 278,802.95, 418,212.62 and 68,440.88
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Solution
The fourth proportional to 278,802.95, 418,212.62 and 68,440.88 is: 102,663.32
Step by Step Solution
- Step 1: Write the proportion equation
278,802.95 : 418,212.62 = 68,440.88 : x - Step 2: Convert to fraction form
278,802.95/418,212.62 = 68,440.88/x - Step 3: Cross multiply
278,802.95x = 418,212.62 × 68,440.88 - Step 4: Simplify right side
278,802.95x = 28,622,837,306.64 - Step 5: Solve for x
x = 28,622,837,306.64/278,802.95 - Step 6: Final answer
x = 102,663.32
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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.