Finding the Fourth Proportional to 250,128.99, 345,177.64 and 135,407.07
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Solution
The fourth proportional to 250,128.99, 345,177.64 and 135,407.07 is: 186,861.56
Step by Step Solution
- Step 1: Write the proportion equation
250,128.99 : 345,177.64 = 135,407.07 : x - Step 2: Convert to fraction form
250,128.99/345,177.64 = 135,407.07/x - Step 3: Cross multiply
250,128.99x = 345,177.64 × 135,407.07 - Step 4: Simplify right side
250,128.99x = 46,739,494,325.59 - Step 5: Solve for x
x = 46,739,494,325.59/250,128.99 - Step 6: Final answer
x = 186,861.56
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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.