Finding the Fourth Proportional to 286,419.68, 395,258.96 and 159,107.12
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Solution
The fourth proportional to 286,419.68, 395,258.96 and 159,107.12 is: 219,567.72
Step by Step Solution
- Step 1: Write the proportion equation
286,419.68 : 395,258.96 = 159,107.12 : x - Step 2: Convert to fraction form
286,419.68/395,258.96 = 159,107.12/x - Step 3: Cross multiply
286,419.68x = 395,258.96 × 159,107.12 - Step 4: Simplify right side
286,419.68x = 62,888,514,779.80 - Step 5: Solve for x
x = 62,888,514,779.80/286,419.68 - Step 6: Final answer
x = 219,567.72
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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.