Finding the Fourth Proportional to 336,781.07, 465,365.81 and 239,816.58
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Solution
The fourth proportional to 336,781.07, 465,365.81 and 239,816.58 is: 331,379.79
Step by Step Solution
- Step 1: Write the proportion equation
336,781.07 : 465,365.81 = 239,816.58 : x - Step 2: Convert to fraction form
336,781.07/465,365.81 = 239,816.58/x - Step 3: Cross multiply
336,781.07x = 465,365.81 × 239,816.58 - Step 4: Simplify right side
336,781.07x = 111,602,438,766.09 - Step 5: Solve for x
x = 111,602,438,766.09/336,781.07 - Step 6: Final answer
x = 331,379.79
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1.5x scale
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.