Finding the Fourth Proportional to 317,912.68, 438,718.17 and 174,672.28
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Solution
The fourth proportional to 317,912.68, 438,718.17 and 174,672.28 is: 241,047.02
Step by Step Solution
- Step 1: Write the proportion equation
317,912.68 : 438,718.17 = 174,672.28 : x - Step 2: Convert to fraction form
317,912.68/438,718.17 = 174,672.28/x - Step 3: Cross multiply
317,912.68x = 438,718.17 × 174,672.28 - Step 4: Simplify right side
317,912.68x = 76,631,903,031.33 - Step 5: Solve for x
x = 76,631,903,031.33/317,912.68 - Step 6: Final answer
x = 241,047.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.