Finding the Fourth Proportional to 279,036.99, 385,084.21 and 158,180.62
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Solution
The fourth proportional to 279,036.99, 385,084.21 and 158,180.62 is: 218,296.72
Step by Step Solution
- Step 1: Write the proportion equation
279,036.99 : 385,084.21 = 158,180.62 : x - Step 2: Convert to fraction form
279,036.99/385,084.21 = 158,180.62/x - Step 3: Cross multiply
279,036.99x = 385,084.21 × 158,180.62 - Step 4: Simplify right side
279,036.99x = 60,912,859,090.01 - Step 5: Solve for x
x = 60,912,859,090.01/279,036.99 - Step 6: Final answer
x = 218,296.72
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1.5x scale
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.