Finding the Fourth Proportional to 243,363.30, 335,837.79 and 135,934.80
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Solution
The fourth proportional to 243,363.30, 335,837.79 and 135,934.80 is: 187,588.03
Step by Step Solution
- Step 1: Write the proportion equation
243,363.30 : 335,837.79 = 135,934.80 : x - Step 2: Convert to fraction form
243,363.30/335,837.79 = 135,934.80/x - Step 3: Cross multiply
243,363.30x = 335,837.79 × 135,934.80 - Step 4: Simplify right side
243,363.30x = 45,652,042,816.09 - Step 5: Solve for x
x = 45,652,042,816.09/243,363.30 - Step 6: Final answer
x = 187,588.03
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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.