Finding the Fourth Proportional to 401,078.39, 553,435.56 and 239,874.62
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Solution
The fourth proportional to 401,078.39, 553,435.56 and 239,874.62 is: 330,995.51
Step by Step Solution
- Step 1: Write the proportion equation
401,078.39 : 553,435.56 = 239,874.62 : x - Step 2: Convert to fraction form
401,078.39/553,435.56 = 239,874.62/x - Step 3: Cross multiply
401,078.39x = 553,435.56 × 239,874.62 - Step 4: Simplify right side
401,078.39x = 132,755,146,033.08 - Step 5: Solve for x
x = 132,755,146,033.08/401,078.39 - Step 6: Final answer
x = 330,995.51
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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.