Finding the Fourth Proportional to 316,349.76, 436,673.76 and 195,583.68
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Solution
The fourth proportional to 316,349.76, 436,673.76 and 195,583.68 is: 269,974.16
Step by Step Solution
- Step 1: Write the proportion equation
316,349.76 : 436,673.76 = 195,583.68 : x - Step 2: Convert to fraction form
316,349.76/436,673.76 = 195,583.68/x - Step 3: Cross multiply
316,349.76x = 436,673.76 × 195,583.68 - Step 4: Simplify right side
316,349.76x = 85,406,260,940.24 - Step 5: Solve for x
x = 85,406,260,940.24/316,349.76 - Step 6: Final answer
x = 269,974.16
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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.