Finding the Fourth Proportional to 313,181.76, 432,010.08 and 199,876.80
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Solution
The fourth proportional to 313,181.76, 432,010.08 and 199,876.80 is: 275,714.63
Step by Step Solution
- Step 1: Write the proportion equation
313,181.76 : 432,010.08 = 199,876.80 : x - Step 2: Convert to fraction form
313,181.76/432,010.08 = 199,876.80/x - Step 3: Cross multiply
313,181.76x = 432,010.08 × 199,876.80 - Step 4: Simplify right side
313,181.76x = 86,348,792,358.14 - Step 5: Solve for x
x = 86,348,792,358.14/313,181.76 - Step 6: Final answer
x = 275,714.63
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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.