Finding the Fourth Proportional to 280,642.68, 387,294.50 and 167,531.08
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Solution
The fourth proportional to 280,642.68, 387,294.50 and 167,531.08 is: 231,197.43
Step by Step Solution
- Step 1: Write the proportion equation
280,642.68 : 387,294.50 = 167,531.08 : x - Step 2: Convert to fraction form
280,642.68/387,294.50 = 167,531.08/x - Step 3: Cross multiply
280,642.68x = 387,294.50 × 167,531.08 - Step 4: Simplify right side
280,642.68x = 64,883,865,863.06 - Step 5: Solve for x
x = 64,883,865,863.06/280,642.68 - Step 6: Final answer
x = 231,197.43
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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.