Finding the Fourth Proportional to 439,637.80, 659,456.70 and 107,213.80
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Solution
The fourth proportional to 439,637.80, 659,456.70 and 107,213.80 is: 160,820.70
Step by Step Solution
- Step 1: Write the proportion equation
439,637.80 : 659,456.70 = 107,213.80 : x - Step 2: Convert to fraction form
439,637.80/659,456.70 = 107,213.80/x - Step 3: Cross multiply
439,637.80x = 659,456.70 × 107,213.80 - Step 4: Simplify right side
439,637.80x = 70,702,858,742.46 - Step 5: Solve for x
x = 70,702,858,742.46/439,637.80 - Step 6: Final answer
x = 160,820.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.