Finding the Fourth Proportional to 313,688.25, 432,891.81 and 170,448.26
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Solution
The fourth proportional to 313,688.25, 432,891.81 and 170,448.26 is: 235,219.69
Step by Step Solution
- Step 1: Write the proportion equation
313,688.25 : 432,891.81 = 170,448.26 : x - Step 2: Convert to fraction form
313,688.25/432,891.81 = 170,448.26/x - Step 3: Cross multiply
313,688.25x = 432,891.81 × 170,448.26 - Step 4: Simplify right side
313,688.25x = 73,785,653,618.29 - Step 5: Solve for x
x = 73,785,653,618.29/313,688.25 - Step 6: Final answer
x = 235,219.69
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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.