Finding the Fourth Proportional to 150,651.84, 207,955.44 and 129,345.60
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Solution
The fourth proportional to 150,651.84, 207,955.44 and 129,345.60 is: 178,544.92
Step by Step Solution
- Step 1: Write the proportion equation
150,651.84 : 207,955.44 = 129,345.60 : x - Step 2: Convert to fraction form
150,651.84/207,955.44 = 129,345.60/x - Step 3: Cross multiply
150,651.84x = 207,955.44 × 129,345.60 - Step 4: Simplify right side
150,651.84x = 26,898,121,160.06 - Step 5: Solve for x
x = 26,898,121,160.06/150,651.84 - Step 6: Final answer
x = 178,544.92
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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.