Finding the Fourth Proportional to 378,146.25, 567,219.36 and 259,457.76
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Solution
The fourth proportional to 378,146.25, 567,219.36 and 259,457.76 is: 389,186.63
Step by Step Solution
- Step 1: Write the proportion equation
378,146.25 : 567,219.36 = 259,457.76 : x - Step 2: Convert to fraction form
378,146.25/567,219.36 = 259,457.76/x - Step 3: Cross multiply
378,146.25x = 567,219.36 × 259,457.76 - Step 4: Simplify right side
378,146.25x = 147,169,464,574.23 - Step 5: Solve for x
x = 147,169,464,574.23/378,146.25 - Step 6: Final answer
x = 389,186.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.