Finding the Fourth Proportional to 207,623.41, 286,438.29 and 131,113.96
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Solution
The fourth proportional to 207,623.41, 286,438.29 and 131,113.96 is: 180,885.47
Step by Step Solution
- Step 1: Write the proportion equation
207,623.41 : 286,438.29 = 131,113.96 : x - Step 2: Convert to fraction form
207,623.41/286,438.29 = 131,113.96/x - Step 3: Cross multiply
207,623.41x = 286,438.29 × 131,113.96 - Step 4: Simplify right side
207,623.41x = 37,556,058,497.53 - Step 5: Solve for x
x = 37,556,058,497.53/207,623.41 - Step 6: Final answer
x = 180,885.47
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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.