Finding the Fourth Proportional to 250,143.93, 345,195.09 and 136,966.68
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Solution
The fourth proportional to 250,143.93, 345,195.09 and 136,966.68 is: 189,012.08
Step by Step Solution
- Step 1: Write the proportion equation
250,143.93 : 345,195.09 = 136,966.68 : x - Step 2: Convert to fraction form
250,143.93/345,195.09 = 136,966.68/x - Step 3: Cross multiply
250,143.93x = 345,195.09 × 136,966.68 - Step 4: Simplify right side
250,143.93x = 47,280,225,429.60 - Step 5: Solve for x
x = 47,280,225,429.60/250,143.93 - Step 6: Final answer
x = 189,012.08
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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.