Finding the Fourth Proportional to 239,946.68, 359,939.16 and 82,176.50
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Solution
The fourth proportional to 239,946.68, 359,939.16 and 82,176.50 is: 123,271.31
Step by Step Solution
- Step 1: Write the proportion equation
239,946.68 : 359,939.16 = 82,176.50 : x - Step 2: Convert to fraction form
239,946.68/359,939.16 = 82,176.50/x - Step 3: Cross multiply
239,946.68x = 359,939.16 × 82,176.50 - Step 4: Simplify right side
239,946.68x = 29,578,540,381.74 - Step 5: Solve for x
x = 29,578,540,381.74/239,946.68 - Step 6: Final answer
x = 123,271.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.