Finding the Fourth Proportional to 276,055.13, 380,952.42 and 153,546.68
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Solution
The fourth proportional to 276,055.13, 380,952.42 and 153,546.68 is: 211,892.38
Step by Step Solution
- Step 1: Write the proportion equation
276,055.13 : 380,952.42 = 153,546.68 : x - Step 2: Convert to fraction form
276,055.13/380,952.42 = 153,546.68/x - Step 3: Cross multiply
276,055.13x = 380,952.42 × 153,546.68 - Step 4: Simplify right side
276,055.13x = 58,493,979,328.97 - Step 5: Solve for x
x = 58,493,979,328.97/276,055.13 - Step 6: Final answer
x = 211,892.38
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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.