Finding the Fourth Proportional to 258,467.24, 356,641.32 and 143,730.84
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Solution
The fourth proportional to 258,467.24, 356,641.32 and 143,730.84 is: 198,324.39
Step by Step Solution
- Step 1: Write the proportion equation
258,467.24 : 356,641.32 = 143,730.84 : x - Step 2: Convert to fraction form
258,467.24/356,641.32 = 143,730.84/x - Step 3: Cross multiply
258,467.24x = 356,641.32 × 143,730.84 - Step 4: Simplify right side
258,467.24x = 51,260,356,502.31 - Step 5: Solve for x
x = 51,260,356,502.31/258,467.24 - Step 6: Final answer
x = 198,324.39
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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.