Finding the Fourth Proportional to 281,089.66, 387,841.53 and 172,216.99
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Solution
The fourth proportional to 281,089.66, 387,841.53 and 172,216.99 is: 237,621.34
Step by Step Solution
- Step 1: Write the proportion equation
281,089.66 : 387,841.53 = 172,216.99 : x - Step 2: Convert to fraction form
281,089.66/387,841.53 = 172,216.99/x - Step 3: Cross multiply
281,089.66x = 387,841.53 × 172,216.99 - Step 4: Simplify right side
281,089.66x = 66,792,900,893.59 - Step 5: Solve for x
x = 66,792,900,893.59/281,089.66 - Step 6: Final answer
x = 237,621.34
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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.