Finding the Fourth Proportional to 245,482.50, 338,736.09 and 136,561.09
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Solution
The fourth proportional to 245,482.50, 338,736.09 and 136,561.09 is: 188,437.75
Step by Step Solution
- Step 1: Write the proportion equation
245,482.50 : 338,736.09 = 136,561.09 : x - Step 2: Convert to fraction form
245,482.50/338,736.09 = 136,561.09/x - Step 3: Cross multiply
245,482.50x = 338,736.09 × 136,561.09 - Step 4: Simplify right side
245,482.50x = 46,258,169,672.74 - Step 5: Solve for x
x = 46,258,169,672.74/245,482.50 - Step 6: Final answer
x = 188,437.75
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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.