Finding the Fourth Proportional to 239,312.40, 330,233.10 and 131,882.94
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Solution
The fourth proportional to 239,312.40, 330,233.10 and 131,882.94 is: 181,988.53
Step by Step Solution
- Step 1: Write the proportion equation
239,312.40 : 330,233.10 = 131,882.94 : x - Step 2: Convert to fraction form
239,312.40/330,233.10 = 131,882.94/x - Step 3: Cross multiply
239,312.40x = 330,233.10 × 131,882.94 - Step 4: Simplify right side
239,312.40x = 43,552,112,113.31 - Step 5: Solve for x
x = 43,552,112,113.31/239,312.40 - Step 6: Final answer
x = 181,988.53
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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.