Finding the Fourth Proportional to 286,670.36, 395,609.82 and 157,614.28
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Solution
The fourth proportional to 286,670.36, 395,609.82 and 157,614.28 is: 217,510.30
Step by Step Solution
- Step 1: Write the proportion equation
286,670.36 : 395,609.82 = 157,614.28 : x - Step 2: Convert to fraction form
286,670.36/395,609.82 = 157,614.28/x - Step 3: Cross multiply
286,670.36x = 395,609.82 × 157,614.28 - Step 4: Simplify right side
286,670.36x = 62,353,756,940.23 - Step 5: Solve for x
x = 62,353,756,940.23/286,670.36 - Step 6: Final answer
x = 217,510.30
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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.