Finding the Fourth Proportional to 211,011.13, 316,575.97 and 84,740.05
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Solution
The fourth proportional to 211,011.13, 316,575.97 and 84,740.05 is: 127,133.87
Step by Step Solution
- Step 1: Write the proportion equation
211,011.13 : 316,575.97 = 84,740.05 : x - Step 2: Convert to fraction form
211,011.13/316,575.97 = 84,740.05/x - Step 3: Cross multiply
211,011.13x = 316,575.97 × 84,740.05 - Step 4: Simplify right side
211,011.13x = 26,826,661,520.02 - Step 5: Solve for x
x = 26,826,661,520.02/211,011.13 - Step 6: Final answer
x = 127,133.87
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.