Finding the Fourth Proportional to 190,934.28, 286,494.36 and 77,077.44
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Solution
The fourth proportional to 190,934.28, 286,494.36 and 77,077.44 is: 115,653.68
Step by Step Solution
- Step 1: Write the proportion equation
190,934.28 : 286,494.36 = 77,077.44 : x - Step 2: Convert to fraction form
190,934.28/286,494.36 = 77,077.44/x - Step 3: Cross multiply
190,934.28x = 286,494.36 × 77,077.44 - Step 4: Simplify right side
190,934.28x = 22,082,251,843.24 - Step 5: Solve for x
x = 22,082,251,843.24/190,934.28 - Step 6: Final answer
x = 115,653.68
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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.