Finding the Fourth Proportional to 245,316.29, 338,546.07 and 137,885.99
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Solution
The fourth proportional to 245,316.29, 338,546.07 and 137,885.99 is: 190,288.05
Step by Step Solution
- Step 1: Write the proportion equation
245,316.29 : 338,546.07 = 137,885.99 : x - Step 2: Convert to fraction form
245,316.29/338,546.07 = 137,885.99/x - Step 3: Cross multiply
245,316.29x = 338,546.07 × 137,885.99 - Step 4: Simplify right side
245,316.29x = 46,680,758,329.83 - Step 5: Solve for x
x = 46,680,758,329.83/245,316.29 - Step 6: Final answer
x = 190,288.05
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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.