Finding the Fourth Proportional to 316,473.60, 474,540.12 and 126,838.80
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Solution
The fourth proportional to 316,473.60, 474,540.12 and 126,838.80 is: 190,189.95
Step by Step Solution
- Step 1: Write the proportion equation
316,473.60 : 474,540.12 = 126,838.80 : x - Step 2: Convert to fraction form
316,473.60/474,540.12 = 126,838.80/x - Step 3: Cross multiply
316,473.60x = 474,540.12 × 126,838.80 - Step 4: Simplify right side
316,473.60x = 60,190,099,372.66 - Step 5: Solve for x
x = 60,190,099,372.66/316,473.60 - Step 6: Final answer
x = 190,189.95
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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.