Finding the Fourth Proportional to 305,246.48, 421,210.13 and 169,278.05
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Solution
The fourth proportional to 305,246.48, 421,210.13 and 169,278.05 is: 233,587.07
Step by Step Solution
- Step 1: Write the proportion equation
305,246.48 : 421,210.13 = 169,278.05 : x - Step 2: Convert to fraction form
305,246.48/421,210.13 = 169,278.05/x - Step 3: Cross multiply
305,246.48x = 421,210.13 × 169,278.05 - Step 4: Simplify right side
305,246.48x = 71,301,629,653.28 - Step 5: Solve for x
x = 71,301,629,653.28/305,246.48 - Step 6: Final answer
x = 233,587.07
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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.