Finding the Fourth Proportional to 250,681.80, 345,939.89 and 135,959.99
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Solution
The fourth proportional to 250,681.80, 345,939.89 and 135,959.99 is: 187,624.23
Step by Step Solution
- Step 1: Write the proportion equation
250,681.80 : 345,939.89 = 135,959.99 : x - Step 2: Convert to fraction form
250,681.80/345,939.89 = 135,959.99/x - Step 3: Cross multiply
250,681.80x = 345,939.89 × 135,959.99 - Step 4: Simplify right side
250,681.80x = 47,033,981,575.50 - Step 5: Solve for x
x = 47,033,981,575.50/250,681.80 - Step 6: Final answer
x = 187,624.23
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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.