Finding the Fourth Proportional to 338,689.40, 467,442.47 and 216,234.10
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Solution
The fourth proportional to 338,689.40, 467,442.47 and 216,234.10 is: 298,435.68
Step by Step Solution
- Step 1: Write the proportion equation
338,689.40 : 467,442.47 = 216,234.10 : x - Step 2: Convert to fraction form
338,689.40/467,442.47 = 216,234.10/x - Step 3: Cross multiply
338,689.40x = 467,442.47 × 216,234.10 - Step 4: Simplify right side
338,689.40x = 101,077,001,802.23 - Step 5: Solve for x
x = 101,077,001,802.23/338,689.40 - Step 6: Final answer
x = 298,435.68
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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.