Finding the Fourth Proportional to 318,882.66, 478,157.82 and 119,038.68
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Solution
The fourth proportional to 318,882.66, 478,157.82 and 119,038.68 is: 178,495.99
Step by Step Solution
- Step 1: Write the proportion equation
318,882.66 : 478,157.82 = 119,038.68 : x - Step 2: Convert to fraction form
318,882.66/478,157.82 = 119,038.68/x - Step 3: Cross multiply
318,882.66x = 478,157.82 × 119,038.68 - Step 4: Simplify right side
318,882.66x = 56,919,275,724.48 - Step 5: Solve for x
x = 56,919,275,724.48/318,882.66 - Step 6: Final answer
x = 178,495.99
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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.