Finding the Fourth Proportional to 250,439.64, 345,605.88 and 135,718.68
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Solution
The fourth proportional to 250,439.64, 345,605.88 and 135,718.68 is: 187,291.33
Step by Step Solution
- Step 1: Write the proportion equation
250,439.64 : 345,605.88 = 135,718.68 : x - Step 2: Convert to fraction form
250,439.64/345,605.88 = 135,718.68/x - Step 3: Cross multiply
250,439.64x = 345,605.88 × 135,718.68 - Step 4: Simplify right side
250,439.64x = 46,905,173,833.84 - Step 5: Solve for x
x = 46,905,173,833.84/250,439.64 - Step 6: Final answer
x = 187,291.33
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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.