Finding the Fourth Proportional to 313,236.65, 432,204.05 and 190,646.92
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Solution
The fourth proportional to 313,236.65, 432,204.05 and 190,646.92 is: 263,054.69
Step by Step Solution
- Step 1: Write the proportion equation
313,236.65 : 432,204.05 = 190,646.92 : x - Step 2: Convert to fraction form
313,236.65/432,204.05 = 190,646.92/x - Step 3: Cross multiply
313,236.65x = 432,204.05 × 190,646.92 - Step 4: Simplify right side
313,236.65x = 82,398,369,990.79 - Step 5: Solve for x
x = 82,398,369,990.79/313,236.65 - Step 6: Final answer
x = 263,054.69
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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.