Finding the Fourth Proportional to 306,531.68, 423,072.08 and 191,863.76
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Solution
The fourth proportional to 306,531.68, 423,072.08 and 191,863.76 is: 264,808.52
Step by Step Solution
- Step 1: Write the proportion equation
306,531.68 : 423,072.08 = 191,863.76 : x - Step 2: Convert to fraction form
306,531.68/423,072.08 = 191,863.76/x - Step 3: Cross multiply
306,531.68x = 423,072.08 × 191,863.76 - Step 4: Simplify right side
306,531.68x = 81,172,200,019.82 - Step 5: Solve for x
x = 81,172,200,019.82/306,531.68 - Step 6: Final answer
x = 264,808.52
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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.