Finding the Fourth Proportional to 407,365.56, 611,048.35 and 217,249.95
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Solution
The fourth proportional to 407,365.56, 611,048.35 and 217,249.95 is: 325,874.92
Step by Step Solution
- Step 1: Write the proportion equation
407,365.56 : 611,048.35 = 217,249.95 : x - Step 2: Convert to fraction form
407,365.56/611,048.35 = 217,249.95/x - Step 3: Cross multiply
407,365.56x = 611,048.35 × 217,249.95 - Step 4: Simplify right side
407,365.56x = 132,750,221,999.91 - Step 5: Solve for x
x = 132,750,221,999.91/407,365.56 - Step 6: Final answer
x = 325,874.92
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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.