Finding the Fourth Proportional to 268,894.16, 403,425.96 and 126,733.68
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Solution
The fourth proportional to 268,894.16, 403,425.96 and 126,733.68 is: 190,140.45
Step by Step Solution
- Step 1: Write the proportion equation
268,894.16 : 403,425.96 = 126,733.68 : x - Step 2: Convert to fraction form
268,894.16/403,425.96 = 126,733.68/x - Step 3: Cross multiply
268,894.16x = 403,425.96 × 126,733.68 - Step 4: Simplify right side
268,894.16x = 51,127,656,518.33 - Step 5: Solve for x
x = 51,127,656,518.33/268,894.16 - Step 6: Final answer
x = 190,140.45
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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.