Finding the Fourth Proportional to 279,156.48, 418,734.95 and 68,794.44
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Solution
The fourth proportional to 279,156.48, 418,734.95 and 68,794.44 is: 103,191.72
Step by Step Solution
- Step 1: Write the proportion equation
279,156.48 : 418,734.95 = 68,794.44 : x - Step 2: Convert to fraction form
279,156.48/418,734.95 = 68,794.44/x - Step 3: Cross multiply
279,156.48x = 418,734.95 × 68,794.44 - Step 4: Simplify right side
279,156.48x = 28,806,636,393.68 - Step 5: Solve for x
x = 28,806,636,393.68/279,156.48 - Step 6: Final answer
x = 103,191.72
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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.