Finding the Fourth Proportional to 378,800.69, 568,400.54 and 218,988.88
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Solution
The fourth proportional to 378,800.69, 568,400.54 and 218,988.88 is: 328,598.65
Step by Step Solution
- Step 1: Write the proportion equation
378,800.69 : 568,400.54 = 218,988.88 : x - Step 2: Convert to fraction form
378,800.69/568,400.54 = 218,988.88/x - Step 3: Cross multiply
378,800.69x = 568,400.54 × 218,988.88 - Step 4: Simplify right side
378,800.69x = 124,473,395,130.05 - Step 5: Solve for x
x = 124,473,395,130.05/378,800.69 - Step 6: Final answer
x = 328,598.65
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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.