Finding the Fourth Proportional to 374,879.20, 562,318.80 and 217,415.20
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Solution
The fourth proportional to 374,879.20, 562,318.80 and 217,415.20 is: 326,122.80
Step by Step Solution
- Step 1: Write the proportion equation
374,879.20 : 562,318.80 = 217,415.20 : x - Step 2: Convert to fraction form
374,879.20/562,318.80 = 217,415.20/x - Step 3: Cross multiply
374,879.20x = 562,318.80 × 217,415.20 - Step 4: Simplify right side
374,879.20x = 122,256,654,365.76 - Step 5: Solve for x
x = 122,256,654,365.76/374,879.20 - Step 6: Final answer
x = 326,122.80
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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.