Finding the Fourth Proportional to 316,614.60, 474,518.70 and 129,414.60
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Solution
The fourth proportional to 316,614.60, 474,518.70 and 129,414.60 is: 193,957.09
Step by Step Solution
- Step 1: Write the proportion equation
316,614.60 : 474,518.70 = 129,414.60 : x - Step 2: Convert to fraction form
316,614.60/474,518.70 = 129,414.60/x - Step 3: Cross multiply
316,614.60x = 474,518.70 × 129,414.60 - Step 4: Simplify right side
316,614.60x = 61,409,647,753.02 - Step 5: Solve for x
x = 61,409,647,753.02/316,614.60 - Step 6: Final answer
x = 193,957.09
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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.