Finding the Fourth Proportional to 313,245.09, 432,278.52 and 170,005.18
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Solution
The fourth proportional to 313,245.09, 432,278.52 and 170,005.18 is: 234,607.31
Step by Step Solution
- Step 1: Write the proportion equation
313,245.09 : 432,278.52 = 170,005.18 : x - Step 2: Convert to fraction form
313,245.09/432,278.52 = 170,005.18/x - Step 3: Cross multiply
313,245.09x = 432,278.52 × 170,005.18 - Step 4: Simplify right side
313,245.09x = 73,489,587,651.32 - Step 5: Solve for x
x = 73,489,587,651.32/313,245.09 - Step 6: Final answer
x = 234,607.31
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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.