Finding the Fourth Proportional to 150,434.77, 207,609.65 and 83,371.09
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Solution
The fourth proportional to 150,434.77, 207,609.65 and 83,371.09 is: 115,057.46
Step by Step Solution
- Step 1: Write the proportion equation
150,434.77 : 207,609.65 = 83,371.09 : x - Step 2: Convert to fraction form
150,434.77/207,609.65 = 83,371.09/x - Step 3: Cross multiply
150,434.77x = 207,609.65 × 83,371.09 - Step 4: Simplify right side
150,434.77x = 17,308,641,985.40 - Step 5: Solve for x
x = 17,308,641,985.40/150,434.77 - Step 6: Final answer
x = 115,057.46
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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.