Finding the Fourth Proportional to 201,573.95, 278,174.16 and 115,531.07
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Solution
The fourth proportional to 201,573.95, 278,174.16 and 115,531.07 is: 159,434.08
Step by Step Solution
- Step 1: Write the proportion equation
201,573.95 : 278,174.16 = 115,531.07 : x - Step 2: Convert to fraction form
201,573.95/278,174.16 = 115,531.07/x - Step 3: Cross multiply
201,573.95x = 278,174.16 × 115,531.07 - Step 4: Simplify right side
201,573.95x = 32,137,756,960.28 - Step 5: Solve for x
x = 32,137,756,960.28/201,573.95 - Step 6: Final answer
x = 159,434.08
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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.