Finding the Fourth Proportional to 353,811.80, 530,845.68 and 218,717.84
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Solution
The fourth proportional to 353,811.80, 530,845.68 and 218,717.84 is: 328,155.87
Step by Step Solution
- Step 1: Write the proportion equation
353,811.80 : 530,845.68 = 218,717.84 : x - Step 2: Convert to fraction form
353,811.80/530,845.68 = 218,717.84/x - Step 3: Cross multiply
353,811.80x = 530,845.68 × 218,717.84 - Step 4: Simplify right side
353,811.80x = 116,105,420,502.93 - Step 5: Solve for x
x = 116,105,420,502.93/353,811.80 - Step 6: Final answer
x = 328,155.87
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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.