Finding the Fourth Proportional to 242,985.94, 335,320.74 and 135,555.97
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Solution
The fourth proportional to 242,985.94, 335,320.74 and 135,555.97 is: 187,067.32
Step by Step Solution
- Step 1: Write the proportion equation
242,985.94 : 335,320.74 = 135,555.97 : x - Step 2: Convert to fraction form
242,985.94/335,320.74 = 135,555.97/x - Step 3: Cross multiply
242,985.94x = 335,320.74 × 135,555.97 - Step 4: Simplify right side
242,985.94x = 45,454,728,171.82 - Step 5: Solve for x
x = 45,454,728,171.82/242,985.94 - Step 6: Final answer
x = 187,067.32
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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.