Finding the Fourth Proportional to 285,151.41, 393,521.36 and 157,826.97
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Solution
The fourth proportional to 285,151.41, 393,521.36 and 157,826.97 is: 217,808.09
Step by Step Solution
- Step 1: Write the proportion equation
285,151.41 : 393,521.36 = 157,826.97 : x - Step 2: Convert to fraction form
285,151.41/393,521.36 = 157,826.97/x - Step 3: Cross multiply
285,151.41x = 393,521.36 × 157,826.97 - Step 4: Simplify right side
285,151.41x = 62,108,283,089.94 - Step 5: Solve for x
x = 62,108,283,089.94/285,151.41 - Step 6: Final answer
x = 217,808.09
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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.