Finding the Fourth Proportional to 318,864.63, 478,130.85 and 119,020.68
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Solution
The fourth proportional to 318,864.63, 478,130.85 and 119,020.68 is: 178,469.02
Step by Step Solution
- Step 1: Write the proportion equation
318,864.63 : 478,130.85 = 119,020.68 : x - Step 2: Convert to fraction form
318,864.63/478,130.85 = 119,020.68/x - Step 3: Cross multiply
318,864.63x = 478,130.85 × 119,020.68 - Step 4: Simplify right side
318,864.63x = 56,907,458,895.98 - Step 5: Solve for x
x = 56,907,458,895.98/318,864.63 - Step 6: Final answer
x = 178,469.02
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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.