Finding the Fourth Proportional to 239,795.81, 330,916.35 and 132,365.81
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Solution
The fourth proportional to 239,795.81, 330,916.35 and 132,365.81 is: 182,663.79
Step by Step Solution
- Step 1: Write the proportion equation
239,795.81 : 330,916.35 = 132,365.81 : x - Step 2: Convert to fraction form
239,795.81/330,916.35 = 132,365.81/x - Step 3: Cross multiply
239,795.81x = 330,916.35 × 132,365.81 - Step 4: Simplify right side
239,795.81x = 43,802,010,709.99 - Step 5: Solve for x
x = 43,802,010,709.99/239,795.81 - Step 6: Final answer
x = 182,663.79
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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.