Finding the Fourth Proportional to 235,665.33, 325,212.84 and 128,235.66
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Solution
The fourth proportional to 235,665.33, 325,212.84 and 128,235.66 is: 176,962.32
Step by Step Solution
- Step 1: Write the proportion equation
235,665.33 : 325,212.84 = 128,235.66 : x - Step 2: Convert to fraction form
235,665.33/325,212.84 = 128,235.66/x - Step 3: Cross multiply
235,665.33x = 325,212.84 × 128,235.66 - Step 4: Simplify right side
235,665.33x = 41,703,883,177.87 - Step 5: Solve for x
x = 41,703,883,177.87/235,665.33 - Step 6: Final answer
x = 176,962.32
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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.