Finding the Fourth Proportional to 211,157.13, 316,670.15 and 76,203.67
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Solution
The fourth proportional to 211,157.13, 316,670.15 and 76,203.67 is: 114,281.85
Step by Step Solution
- Step 1: Write the proportion equation
211,157.13 : 316,670.15 = 76,203.67 : x - Step 2: Convert to fraction form
211,157.13/316,670.15 = 76,203.67/x - Step 3: Cross multiply
211,157.13x = 316,670.15 × 76,203.67 - Step 4: Simplify right side
211,157.13x = 24,131,427,799.96 - Step 5: Solve for x
x = 24,131,427,799.96/211,157.13 - Step 6: Final answer
x = 114,281.85
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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.