Finding the Fourth Proportional to 201,574.95, 278,175.54 and 115,532.07
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Solution
The fourth proportional to 201,574.95, 278,175.54 and 115,532.07 is: 159,435.47
Step by Step Solution
- Step 1: Write the proportion equation
201,574.95 : 278,175.54 = 115,532.07 : x - Step 2: Convert to fraction form
201,574.95/278,175.54 = 115,532.07/x - Step 3: Cross multiply
201,574.95x = 278,175.54 × 115,532.07 - Step 4: Simplify right side
201,574.95x = 32,138,195,959.57 - Step 5: Solve for x
x = 32,138,195,959.57/201,574.95 - Step 6: Final answer
x = 159,435.47
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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.