Finding the Fourth Proportional to 406,690.02, 561,236.40 and 225,405.99
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Solution
The fourth proportional to 406,690.02, 561,236.40 and 225,405.99 is: 311,062.58
Step by Step Solution
- Step 1: Write the proportion equation
406,690.02 : 561,236.40 = 225,405.99 : x - Step 2: Convert to fraction form
406,690.02/561,236.40 = 225,405.99/x - Step 3: Cross multiply
406,690.02x = 561,236.40 × 225,405.99 - Step 4: Simplify right side
406,690.02x = 126,506,046,366.04 - Step 5: Solve for x
x = 126,506,046,366.04/406,690.02 - Step 6: Final answer
x = 311,062.58
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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.