Finding the Fourth Proportional to 421,372.09, 632,076.59 and 121,882.94
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Solution
The fourth proportional to 421,372.09, 632,076.59 and 121,882.94 is: 182,829.75
Step by Step Solution
- Step 1: Write the proportion equation
421,372.09 : 632,076.59 = 121,882.94 : x - Step 2: Convert to fraction form
421,372.09/632,076.59 = 121,882.94/x - Step 3: Cross multiply
421,372.09x = 632,076.59 × 121,882.94 - Step 4: Simplify right side
421,372.09x = 77,039,353,155.05 - Step 5: Solve for x
x = 77,039,353,155.05/421,372.09 - Step 6: Final answer
x = 182,829.75
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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.