Finding the Fourth Proportional to 384,185.76, 530,245.74 and 229,146.99
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Solution
The fourth proportional to 384,185.76, 530,245.74 and 229,146.99 is: 316,264.23
Step by Step Solution
- Step 1: Write the proportion equation
384,185.76 : 530,245.74 = 229,146.99 : x - Step 2: Convert to fraction form
384,185.76/530,245.74 = 229,146.99/x - Step 3: Cross multiply
384,185.76x = 530,245.74 × 229,146.99 - Step 4: Simplify right side
384,185.76x = 121,504,215,281.32 - Step 5: Solve for x
x = 121,504,215,281.32/384,185.76 - Step 6: Final answer
x = 316,264.23
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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.