Finding the Fourth Proportional to 368,126.70, 551,412.45 and 305,918.70
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Solution
The fourth proportional to 368,126.70, 551,412.45 and 305,918.70 is: 458,231.85
Step by Step Solution
- Step 1: Write the proportion equation
368,126.70 : 551,412.45 = 305,918.70 : x - Step 2: Convert to fraction form
368,126.70/551,412.45 = 305,918.70/x - Step 3: Cross multiply
368,126.70x = 551,412.45 × 305,918.70 - Step 4: Simplify right side
368,126.70x = 168,687,379,867.82 - Step 5: Solve for x
x = 168,687,379,867.82/368,126.70 - Step 6: Final answer
x = 458,231.85
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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.