Finding the Fourth Proportional to 479,186.10, 718,865.21 and 163,569.20
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Solution
The fourth proportional to 479,186.10, 718,865.21 and 163,569.20 is: 245,383.17
Step by Step Solution
- Step 1: Write the proportion equation
479,186.10 : 718,865.21 = 163,569.20 : x - Step 2: Convert to fraction form
479,186.10/718,865.21 = 163,569.20/x - Step 3: Cross multiply
479,186.10x = 718,865.21 × 163,569.20 - Step 4: Simplify right side
479,186.10x = 117,584,204,122.13 - Step 5: Solve for x
x = 117,584,204,122.13/479,186.10 - Step 6: Final answer
x = 245,383.17
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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.