Finding the Fourth Proportional to 421,687.41, 632,125.16 and 155,302.62
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Solution
The fourth proportional to 421,687.41, 632,125.16 and 155,302.62 is: 232,804.42
Step by Step Solution
- Step 1: Write the proportion equation
421,687.41 : 632,125.16 = 155,302.62 : x - Step 2: Convert to fraction form
421,687.41/632,125.16 = 155,302.62/x - Step 3: Cross multiply
421,687.41x = 632,125.16 × 155,302.62 - Step 4: Simplify right side
421,687.41x = 98,170,692,739.41 - Step 5: Solve for x
x = 98,170,692,739.41/421,687.41 - Step 6: Final answer
x = 232,804.42
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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.