Finding the Fourth Proportional to 201,564.32, 278,170.25 and 115,537.62
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Solution
The fourth proportional to 201,564.32, 278,170.25 and 115,537.62 is: 159,448.50
Step by Step Solution
- Step 1: Write the proportion equation
201,564.32 : 278,170.25 = 115,537.62 : x - Step 2: Convert to fraction form
201,564.32/278,170.25 = 115,537.62/x - Step 3: Cross multiply
201,564.32x = 278,170.25 × 115,537.62 - Step 4: Simplify right side
201,564.32x = 32,139,128,639.81 - Step 5: Solve for x
x = 32,139,128,639.81/201,564.32 - Step 6: Final answer
x = 159,448.50
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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.