Finding the Fourth Proportional to 201,898.14, 278,619.44 and 117,064.41
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Solution
The fourth proportional to 201,898.14, 278,619.44 and 117,064.41 is: 161,548.89
Step by Step Solution
- Step 1: Write the proportion equation
201,898.14 : 278,619.44 = 117,064.41 : x - Step 2: Convert to fraction form
201,898.14/278,619.44 = 117,064.41/x - Step 3: Cross multiply
201,898.14x = 278,619.44 × 117,064.41 - Step 4: Simplify right side
201,898.14x = 32,616,420,358.13 - Step 5: Solve for x
x = 32,616,420,358.13/201,898.14 - Step 6: Final answer
x = 161,548.89
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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.