Finding the Fourth Proportional to 352,129.25, 528,940.72 and 331,630.23
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Solution
The fourth proportional to 352,129.25, 528,940.72 and 331,630.23 is: 498,148.71
Step by Step Solution
- Step 1: Write the proportion equation
352,129.25 : 528,940.72 = 331,630.23 : x - Step 2: Convert to fraction form
352,129.25/528,940.72 = 331,630.23/x - Step 3: Cross multiply
352,129.25x = 528,940.72 × 331,630.23 - Step 4: Simplify right side
352,129.25x = 175,412,730,098.74 - Step 5: Solve for x
x = 175,412,730,098.74/352,129.25 - Step 6: Final answer
x = 498,148.71
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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.