Finding the Fourth Proportional to 459,649.76, 689,474.66 and 144,132.08
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Solution
The fourth proportional to 459,649.76, 689,474.66 and 144,132.08 is: 216,198.12
Step by Step Solution
- Step 1: Write the proportion equation
459,649.76 : 689,474.66 = 144,132.08 : x - Step 2: Convert to fraction form
459,649.76/689,474.66 = 144,132.08/x - Step 3: Cross multiply
459,649.76x = 689,474.66 × 144,132.08 - Step 4: Simplify right side
459,649.76x = 99,375,412,685.06 - Step 5: Solve for x
x = 99,375,412,685.06/459,649.76 - Step 6: Final answer
x = 216,198.12
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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.