Finding the Fourth Proportional to 406,748.13, 561,339.44 and 225,467.70
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Solution
The fourth proportional to 406,748.13, 561,339.44 and 225,467.70 is: 311,160.40
Step by Step Solution
- Step 1: Write the proportion equation
406,748.13 : 561,339.44 = 225,467.70 : x - Step 2: Convert to fraction form
406,748.13/561,339.44 = 225,467.70/x - Step 3: Cross multiply
406,748.13x = 561,339.44 × 225,467.70 - Step 4: Simplify right side
406,748.13x = 126,563,908,522.05 - Step 5: Solve for x
x = 126,563,908,522.05/406,748.13 - Step 6: Final answer
x = 311,160.40
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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.