Finding the Fourth Proportional to 279,197.36, 385,207.08 and 158,332.40
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Solution
The fourth proportional to 279,197.36, 385,207.08 and 158,332.40 is: 218,450.35
Step by Step Solution
- Step 1: Write the proportion equation
279,197.36 : 385,207.08 = 158,332.40 : x - Step 2: Convert to fraction form
279,197.36/385,207.08 = 158,332.40/x - Step 3: Cross multiply
279,197.36x = 385,207.08 × 158,332.40 - Step 4: Simplify right side
279,197.36x = 60,990,761,473.39 - Step 5: Solve for x
x = 60,990,761,473.39/279,197.36 - Step 6: Final answer
x = 218,450.35
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.