Finding the Fourth Proportional to 306,699.31, 423,215.35 and 226,170.19
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Solution
The fourth proportional to 306,699.31, 423,215.35 and 226,170.19 is: 312,092.96
Step by Step Solution
- Step 1: Write the proportion equation
306,699.31 : 423,215.35 = 226,170.19 : x - Step 2: Convert to fraction form
306,699.31/423,215.35 = 226,170.19/x - Step 3: Cross multiply
306,699.31x = 423,215.35 × 226,170.19 - Step 4: Simplify right side
306,699.31x = 95,718,696,120.42 - Step 5: Solve for x
x = 95,718,696,120.42/306,699.31 - Step 6: Final answer
x = 312,092.96
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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.