Finding the Fourth Proportional to 317,731.91, 438,478.99 and 174,501.17
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Solution
The fourth proportional to 317,731.91, 438,478.99 and 174,501.17 is: 240,816.53
Step by Step Solution
- Step 1: Write the proportion equation
317,731.91 : 438,478.99 = 174,501.17 : x - Step 2: Convert to fraction form
317,731.91/438,478.99 = 174,501.17/x - Step 3: Cross multiply
317,731.91x = 438,478.99 × 174,501.17 - Step 4: Simplify right side
317,731.91x = 76,515,095,791.07 - Step 5: Solve for x
x = 76,515,095,791.07/317,731.91 - Step 6: Final answer
x = 240,816.53
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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.