Finding the Fourth Proportional to 311,929.40, 467,894.10 and 292,246.40
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Solution
The fourth proportional to 311,929.40, 467,894.10 and 292,246.40 is: 438,369.60
Step by Step Solution
- Step 1: Write the proportion equation
311,929.40 : 467,894.10 = 292,246.40 : x - Step 2: Convert to fraction form
311,929.40/467,894.10 = 292,246.40/x - Step 3: Cross multiply
311,929.40x = 467,894.10 × 292,246.40 - Step 4: Simplify right side
311,929.40x = 136,740,366,306.24 - Step 5: Solve for x
x = 136,740,366,306.24/311,929.40 - Step 6: Final answer
x = 438,369.60
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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.