Finding the Fourth Proportional to 354,229.18, 488,821.56 and 193,080.68
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Solution
The fourth proportional to 354,229.18, 488,821.56 and 193,080.68 is: 266,443.32
Step by Step Solution
- Step 1: Write the proportion equation
354,229.18 : 488,821.56 = 193,080.68 : x - Step 2: Convert to fraction form
354,229.18/488,821.56 = 193,080.68/x - Step 3: Cross multiply
354,229.18x = 488,821.56 × 193,080.68 - Step 4: Simplify right side
354,229.18x = 94,381,999,203.46 - Step 5: Solve for x
x = 94,381,999,203.46/354,229.18 - Step 6: Final answer
x = 266,443.32
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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.