Finding the Fourth Proportional to 215,983.99, 323,984.18 and 82,877.70
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Solution
The fourth proportional to 215,983.99, 323,984.18 and 82,877.70 is: 124,319.70
Step by Step Solution
- Step 1: Write the proportion equation
215,983.99 : 323,984.18 = 82,877.70 : x - Step 2: Convert to fraction form
215,983.99/323,984.18 = 82,877.70/x - Step 3: Cross multiply
215,983.99x = 323,984.18 × 82,877.70 - Step 4: Simplify right side
215,983.99x = 26,851,063,881.98 - Step 5: Solve for x
x = 26,851,063,881.98/215,983.99 - Step 6: Final answer
x = 124,319.70
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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.