Finding the Fourth Proportional to 406,749.42, 561,341.22 and 225,468.99
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Solution
The fourth proportional to 406,749.42, 561,341.22 and 225,468.99 is: 311,162.18
Step by Step Solution
- Step 1: Write the proportion equation
406,749.42 : 561,341.22 = 225,468.99 : x - Step 2: Convert to fraction form
406,749.42/561,341.22 = 225,468.99/x - Step 3: Cross multiply
406,749.42x = 561,341.22 × 225,468.99 - Step 4: Simplify right side
406,749.42x = 126,565,037,918.77 - Step 5: Solve for x
x = 126,565,037,918.77/406,749.42 - Step 6: Final answer
x = 311,162.18
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.