Finding the Fourth Proportional to 397,354.29, 548,552.10 and 306,506.31
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Solution
The fourth proportional to 397,354.29, 548,552.10 and 306,506.31 is: 423,135.43
Step by Step Solution
- Step 1: Write the proportion equation
397,354.29 : 548,552.10 = 306,506.31 : x - Step 2: Convert to fraction form
397,354.29/548,552.10 = 306,506.31/x - Step 3: Cross multiply
397,354.29x = 548,552.10 × 306,506.31 - Step 4: Simplify right side
397,354.29x = 168,134,680,013.75 - Step 5: Solve for x
x = 168,134,680,013.75/397,354.29 - Step 6: Final answer
x = 423,135.43
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1.5x scale
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.