Finding the Fourth Proportional to 286,885.73, 395,854.21 and 159,544.29
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Solution
The fourth proportional to 286,885.73, 395,854.21 and 159,544.29 is: 220,144.37
Step by Step Solution
- Step 1: Write the proportion equation
286,885.73 : 395,854.21 = 159,544.29 : x - Step 2: Convert to fraction form
286,885.73/395,854.21 = 159,544.29/x - Step 3: Cross multiply
286,885.73x = 395,854.21 × 159,544.29 - Step 4: Simplify right side
286,885.73x = 63,156,278,080.24 - Step 5: Solve for x
x = 63,156,278,080.24/286,885.73 - Step 6: Final answer
x = 220,144.37
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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.