Finding the Fourth Proportional to 393,916.96, 590,876.40 and 157,278.88
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Solution
The fourth proportional to 393,916.96, 590,876.40 and 157,278.88 is: 235,918.70
Step by Step Solution
- Step 1: Write the proportion equation
393,916.96 : 590,876.40 = 157,278.88 : x - Step 2: Convert to fraction form
393,916.96/590,876.40 = 157,278.88/x - Step 3: Cross multiply
393,916.96x = 590,876.40 × 157,278.88 - Step 4: Simplify right side
393,916.96x = 92,932,378,410.43 - Step 5: Solve for x
x = 92,932,378,410.43/393,916.96 - Step 6: Final answer
x = 235,918.70
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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.