Finding the Fourth Proportional to 242,640.36, 334,842.80 and 135,209.39
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Solution
The fourth proportional to 242,640.36, 334,842.80 and 135,209.39 is: 186,588.45
Step by Step Solution
- Step 1: Write the proportion equation
242,640.36 : 334,842.80 = 135,209.39 : x - Step 2: Convert to fraction form
242,640.36/334,842.80 = 135,209.39/x - Step 3: Cross multiply
242,640.36x = 334,842.80 × 135,209.39 - Step 4: Simplify right side
242,640.36x = 45,273,888,383.63 - Step 5: Solve for x
x = 45,273,888,383.63/242,640.36 - Step 6: Final answer
x = 186,588.45
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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.