Finding the Fourth Proportional to 286,344.11, 395,166.80 and 159,020.75
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Solution
The fourth proportional to 286,344.11, 395,166.80 and 159,020.75 is: 219,455.26
Step by Step Solution
- Step 1: Write the proportion equation
286,344.11 : 395,166.80 = 159,020.75 : x - Step 2: Convert to fraction form
286,344.11/395,166.80 = 159,020.75/x - Step 3: Cross multiply
286,344.11x = 395,166.80 × 159,020.75 - Step 4: Simplify right side
286,344.11x = 62,839,720,911.10 - Step 5: Solve for x
x = 62,839,720,911.10/286,344.11 - Step 6: Final answer
x = 219,455.26
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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.