Finding the Fourth Proportional to 318,859.41, 478,296.27 and 119,070.81
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Solution
The fourth proportional to 318,859.41, 478,296.27 and 119,070.81 is: 178,608.89
Step by Step Solution
- Step 1: Write the proportion equation
318,859.41 : 478,296.27 = 119,070.81 : x - Step 2: Convert to fraction form
318,859.41/478,296.27 = 119,070.81/x - Step 3: Cross multiply
318,859.41x = 478,296.27 × 119,070.81 - Step 4: Simplify right side
318,859.41x = 56,951,124,288.88 - Step 5: Solve for x
x = 56,951,124,288.88/318,859.41 - Step 6: Final answer
x = 178,608.89
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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.