Finding the Fourth Proportional to 421,439.40, 632,149.99 and 117,825.48
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Solution
The fourth proportional to 421,439.40, 632,149.99 and 117,825.48 is: 176,735.67
Step by Step Solution
- Step 1: Write the proportion equation
421,439.40 : 632,149.99 = 117,825.48 : x - Step 2: Convert to fraction form
421,439.40/632,149.99 = 117,825.48/x - Step 3: Cross multiply
421,439.40x = 632,149.99 × 117,825.48 - Step 4: Simplify right side
421,439.40x = 74,483,376,003.75 - Step 5: Solve for x
x = 74,483,376,003.75/421,439.40 - Step 6: Final answer
x = 176,735.67
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.