Finding the Fourth Proportional to 316,182.18, 474,274.08 and 129,193.68
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Solution
The fourth proportional to 316,182.18, 474,274.08 and 129,193.68 is: 193,790.85
Step by Step Solution
- Step 1: Write the proportion equation
316,182.18 : 474,274.08 = 129,193.68 : x - Step 2: Convert to fraction form
316,182.18/474,274.08 = 129,193.68/x - Step 3: Cross multiply
316,182.18x = 474,274.08 × 129,193.68 - Step 4: Simplify right side
316,182.18x = 61,273,213,723.81 - Step 5: Solve for x
x = 61,273,213,723.81/316,182.18 - Step 6: Final answer
x = 193,790.85
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1.5x scale
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.