Finding the Fourth Proportional to 418,213.23, 577,136.66 and 227,228.19
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Solution
The fourth proportional to 418,213.23, 577,136.66 and 227,228.19 is: 313,576.20
Step by Step Solution
- Step 1: Write the proportion equation
418,213.23 : 577,136.66 = 227,228.19 : x - Step 2: Convert to fraction form
418,213.23/577,136.66 = 227,228.19/x - Step 3: Cross multiply
418,213.23x = 577,136.66 × 227,228.19 - Step 4: Simplify right side
418,213.23x = 131,141,717,498.30 - Step 5: Solve for x
x = 131,141,717,498.30/418,213.23 - Step 6: Final answer
x = 313,576.20
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1.5x scale
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.