Finding the Fourth Proportional to 327,125.70, 490,686.93 and 87,239.07
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Solution
The fourth proportional to 327,125.70, 490,686.93 and 87,239.07 is: 130,858.17
Step by Step Solution
- Step 1: Write the proportion equation
327,125.70 : 490,686.93 = 87,239.07 : x - Step 2: Convert to fraction form
327,125.70/490,686.93 = 87,239.07/x - Step 3: Cross multiply
327,125.70x = 490,686.93 × 87,239.07 - Step 4: Simplify right side
327,125.70x = 42,807,071,434.36 - Step 5: Solve for x
x = 42,807,071,434.36/327,125.70 - Step 6: Final answer
x = 130,858.17
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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.