Finding the Fourth Proportional to 439,543.80, 659,315.70 and 107,119.80
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Solution
The fourth proportional to 439,543.80, 659,315.70 and 107,119.80 is: 160,679.70
Step by Step Solution
- Step 1: Write the proportion equation
439,543.80 : 659,315.70 = 107,119.80 : x - Step 2: Convert to fraction form
439,543.80/659,315.70 = 107,119.80/x - Step 3: Cross multiply
439,543.80x = 659,315.70 × 107,119.80 - Step 4: Simplify right side
439,543.80x = 70,625,765,920.86 - Step 5: Solve for x
x = 70,625,765,920.86/439,543.80 - Step 6: Final answer
x = 160,679.70
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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.