Finding the Fourth Proportional to 275,579.70, 380,296.68 and 154,717.98
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Solution
The fourth proportional to 275,579.70, 380,296.68 and 154,717.98 is: 213,508.96
Step by Step Solution
- Step 1: Write the proportion equation
275,579.70 : 380,296.68 = 154,717.98 : x - Step 2: Convert to fraction form
275,579.70/380,296.68 = 154,717.98/x - Step 3: Cross multiply
275,579.70x = 380,296.68 × 154,717.98 - Step 4: Simplify right side
275,579.70x = 58,838,734,130.31 - Step 5: Solve for x
x = 58,838,734,130.31/275,579.70 - Step 6: Final answer
x = 213,508.96
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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.