Finding the Fourth Proportional to 427,217.06, 640,889.30 and 157,324.44
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Solution
The fourth proportional to 427,217.06, 640,889.30 and 157,324.44 is: 236,010.12
Step by Step Solution
- Step 1: Write the proportion equation
427,217.06 : 640,889.30 = 157,324.44 : x - Step 2: Convert to fraction form
427,217.06/640,889.30 = 157,324.44/x - Step 3: Cross multiply
427,217.06x = 640,889.30 × 157,324.44 - Step 4: Simplify right side
427,217.06x = 100,827,550,224.49 - Step 5: Solve for x
x = 100,827,550,224.49/427,217.06 - Step 6: Final answer
x = 236,010.12
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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.