Finding the Fourth Proportional to 485,971.82, 728,964.21 and 170,437.94
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Solution
The fourth proportional to 485,971.82, 728,964.21 and 170,437.94 is: 255,659.18
Step by Step Solution
- Step 1: Write the proportion equation
485,971.82 : 728,964.21 = 170,437.94 : x - Step 2: Convert to fraction form
485,971.82/728,964.21 = 170,437.94/x - Step 3: Cross multiply
485,971.82x = 728,964.21 × 170,437.94 - Step 4: Simplify right side
485,971.82x = 124,243,158,286.13 - Step 5: Solve for x
x = 124,243,158,286.13/485,971.82 - Step 6: Final answer
x = 255,659.18
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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.