Finding the Fourth Proportional to 318,884.66, 478,160.82 and 119,040.68
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Solution
The fourth proportional to 318,884.66, 478,160.82 and 119,040.68 is: 178,498.99
Step by Step Solution
- Step 1: Write the proportion equation
318,884.66 : 478,160.82 = 119,040.68 : x - Step 2: Convert to fraction form
318,884.66/478,160.82 = 119,040.68/x - Step 3: Cross multiply
318,884.66x = 478,160.82 × 119,040.68 - Step 4: Simplify right side
318,884.66x = 56,920,589,162.16 - Step 5: Solve for x
x = 56,920,589,162.16/318,884.66 - Step 6: Final answer
x = 178,498.99
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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.