Finding the Fourth Proportional to 518,747.80, 778,189.75 and 203,163.70
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Solution
The fourth proportional to 518,747.80, 778,189.75 and 203,163.70 is: 304,772.20
Step by Step Solution
- Step 1: Write the proportion equation
518,747.80 : 778,189.75 = 203,163.70 : x - Step 2: Convert to fraction form
518,747.80/778,189.75 = 203,163.70/x - Step 3: Cross multiply
518,747.80x = 778,189.75 × 203,163.70 - Step 4: Simplify right side
518,747.80x = 158,099,904,513.22 - Step 5: Solve for x
x = 158,099,904,513.22/518,747.80 - Step 6: Final answer
x = 304,772.20
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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.