Finding the Fourth Proportional to 461,872.64, 692,853.12 and 129,447.68
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Solution
The fourth proportional to 461,872.64, 692,853.12 and 129,447.68 is: 194,183.90
Step by Step Solution
- Step 1: Write the proportion equation
461,872.64 : 692,853.12 = 129,447.68 : x - Step 2: Convert to fraction form
461,872.64/692,853.12 = 129,447.68/x - Step 3: Cross multiply
461,872.64x = 692,853.12 × 129,447.68 - Step 4: Simplify right side
461,872.64x = 89,688,228,964.76 - Step 5: Solve for x
x = 89,688,228,964.76/461,872.64 - Step 6: Final answer
x = 194,183.90
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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.