Finding the Fourth Proportional to 292,122.49, 403,129.31 and 157,986.49
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Solution
The fourth proportional to 292,122.49, 403,129.31 and 157,986.49 is: 218,021.50
Step by Step Solution
- Step 1: Write the proportion equation
292,122.49 : 403,129.31 = 157,986.49 : x - Step 2: Convert to fraction form
292,122.49/403,129.31 = 157,986.49/x - Step 3: Cross multiply
292,122.49x = 403,129.31 × 157,986.49 - Step 4: Simplify right side
292,122.49x = 63,688,983,913.09 - Step 5: Solve for x
x = 63,688,983,913.09/292,122.49 - Step 6: Final answer
x = 218,021.50
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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.