Finding the Fourth Proportional to 279,497.99, 385,687.77 and 158,641.74
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Solution
The fourth proportional to 279,497.99, 385,687.77 and 158,641.74 is: 218,914.56
Step by Step Solution
- Step 1: Write the proportion equation
279,497.99 : 385,687.77 = 158,641.74 : x - Step 2: Convert to fraction form
279,497.99/385,687.77 = 158,641.74/x - Step 3: Cross multiply
279,497.99x = 385,687.77 × 158,641.74 - Step 4: Simplify right side
279,497.99x = 61,186,178,929.52 - Step 5: Solve for x
x = 61,186,178,929.52/279,497.99 - Step 6: Final answer
x = 218,914.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.