Finding the Fourth Proportional to 631,889.21, 947,833.82 and 211,165.08
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Solution
The fourth proportional to 631,889.21, 947,833.82 and 211,165.08 is: 316,747.62
Step by Step Solution
- Step 1: Write the proportion equation
631,889.21 : 947,833.82 = 211,165.08 : x - Step 2: Convert to fraction form
631,889.21/947,833.82 = 211,165.08/x - Step 3: Cross multiply
631,889.21x = 947,833.82 × 211,165.08 - Step 4: Simplify right side
631,889.21x = 200,149,403,371.18 - Step 5: Solve for x
x = 200,149,403,371.18/631,889.21 - Step 6: Final answer
x = 316,747.62
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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.