Finding the Fourth Proportional to 222,781.88, 307,455.26 and 127,286.53
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Solution
The fourth proportional to 222,781.88, 307,455.26 and 127,286.53 is: 175,664.70
Step by Step Solution
- Step 1: Write the proportion equation
222,781.88 : 307,455.26 = 127,286.53 : x - Step 2: Convert to fraction form
222,781.88/307,455.26 = 127,286.53/x - Step 3: Cross multiply
222,781.88x = 307,455.26 × 127,286.53 - Step 4: Simplify right side
222,781.88x = 39,134,913,175.65 - Step 5: Solve for x
x = 39,134,913,175.65/222,781.88 - Step 6: Final answer
x = 175,664.70
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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.