Finding the Fourth Proportional to 631,900.44, 947,850.66 and 211,176.32
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Solution
The fourth proportional to 631,900.44, 947,850.66 and 211,176.32 is: 316,764.47
Step by Step Solution
- Step 1: Write the proportion equation
631,900.44 : 947,850.66 = 211,176.32 : x - Step 2: Convert to fraction form
631,900.44/947,850.66 = 211,176.32/x - Step 3: Cross multiply
631,900.44x = 947,850.66 × 211,176.32 - Step 4: Simplify right side
631,900.44x = 200,163,609,549.12 - Step 5: Solve for x
x = 200,163,609,549.12/631,900.44 - Step 6: Final answer
x = 316,764.47
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Double scale
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Similar ratio
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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.