Finding the Fourth Proportional to 239,302.16, 330,221.36 and 131,872.17
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Solution
The fourth proportional to 239,302.16, 330,221.36 and 131,872.17 is: 181,974.99
Step by Step Solution
- Step 1: Write the proportion equation
239,302.16 : 330,221.36 = 131,872.17 : x - Step 2: Convert to fraction form
239,302.16/330,221.36 = 131,872.17/x - Step 3: Cross multiply
239,302.16x = 330,221.36 × 131,872.17 - Step 4: Simplify right side
239,302.16x = 43,547,007,323.55 - Step 5: Solve for x
x = 43,547,007,323.55/239,302.16 - Step 6: Final answer
x = 181,974.99
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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.