Finding the Fourth Proportional to 242,858.40, 335,146.08 and 135,435.26
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Solution
The fourth proportional to 242,858.40, 335,146.08 and 135,435.26 is: 186,901.48
Step by Step Solution
- Step 1: Write the proportion equation
242,858.40 : 335,146.08 = 135,435.26 : x - Step 2: Convert to fraction form
242,858.40/335,146.08 = 135,435.26/x - Step 3: Cross multiply
242,858.40x = 335,146.08 × 135,435.26 - Step 4: Simplify right side
242,858.40x = 45,390,594,807.05 - Step 5: Solve for x
x = 45,390,594,807.05/242,858.40 - Step 6: Final answer
x = 186,901.48
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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.