Finding the Fourth Proportional to 292,403.09, 438,251.19 and 142,418.63
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Solution
The fourth proportional to 292,403.09, 438,251.19 and 142,418.63 is: 213,455.79
Step by Step Solution
- Step 1: Write the proportion equation
292,403.09 : 438,251.19 = 142,418.63 : x - Step 2: Convert to fraction form
292,403.09/438,251.19 = 142,418.63/x - Step 3: Cross multiply
292,403.09x = 438,251.19 × 142,418.63 - Step 4: Simplify right side
292,403.09x = 62,415,131,884.41 - Step 5: Solve for x
x = 62,415,131,884.41/292,403.09 - Step 6: Final answer
x = 213,455.79
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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.