Finding the Fourth Proportional to 279,319.18, 418,979.64 and 68,957.14
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Solution
The fourth proportional to 279,319.18, 418,979.64 and 68,957.14 is: 103,435.92
Step by Step Solution
- Step 1: Write the proportion equation
279,319.18 : 418,979.64 = 68,957.14 : x - Step 2: Convert to fraction form
279,319.18/418,979.64 = 68,957.14/x - Step 3: Cross multiply
279,319.18x = 418,979.64 × 68,957.14 - Step 4: Simplify right side
279,319.18x = 28,891,637,692.63 - Step 5: Solve for x
x = 28,891,637,692.63/279,319.18 - Step 6: Final answer
x = 103,435.92
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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.