Finding the Fourth Proportional to 281,088.66, 387,840.15 and 172,215.99
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Solution
The fourth proportional to 281,088.66, 387,840.15 and 172,215.99 is: 237,619.96
Step by Step Solution
- Step 1: Write the proportion equation
281,088.66 : 387,840.15 = 172,215.99 : x - Step 2: Convert to fraction form
281,088.66/387,840.15 = 172,215.99/x - Step 3: Cross multiply
281,088.66x = 387,840.15 × 172,215.99 - Step 4: Simplify right side
281,088.66x = 66,792,275,394.00 - Step 5: Solve for x
x = 66,792,275,394.00/281,088.66 - Step 6: Final answer
x = 237,619.96
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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.