Finding the Fourth Proportional to 235,864.53, 325,493.15 and 128,434.53
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Solution
The fourth proportional to 235,864.53, 325,493.15 and 128,434.53 is: 177,239.70
Step by Step Solution
- Step 1: Write the proportion equation
235,864.53 : 325,493.15 = 128,434.53 : x - Step 2: Convert to fraction form
235,864.53/325,493.15 = 128,434.53/x - Step 3: Cross multiply
235,864.53x = 325,493.15 × 128,434.53 - Step 4: Simplify right side
235,864.53x = 41,804,558,432.09 - Step 5: Solve for x
x = 41,804,558,432.09/235,864.53 - Step 6: Final answer
x = 177,239.70
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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.