Finding the Fourth Proportional to 316,660.16, 436,991.69 and 171,467.53
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Solution
The fourth proportional to 316,660.16, 436,991.69 and 171,467.53 is: 236,625.55
Step by Step Solution
- Step 1: Write the proportion equation
316,660.16 : 436,991.69 = 171,467.53 : x - Step 2: Convert to fraction form
316,660.16/436,991.69 = 171,467.53/x - Step 3: Cross multiply
316,660.16x = 436,991.69 × 171,467.53 - Step 4: Simplify right side
316,660.16x = 74,929,885,714.83 - Step 5: Solve for x
x = 74,929,885,714.83/316,660.16 - Step 6: Final answer
x = 236,625.55
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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.