Finding the Fourth Proportional to 316,214.49, 436,370.26 and 172,973.28
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Solution
The fourth proportional to 316,214.49, 436,370.26 and 172,973.28 is: 238,699.99
Step by Step Solution
- Step 1: Write the proportion equation
316,214.49 : 436,370.26 = 172,973.28 : x - Step 2: Convert to fraction form
316,214.49/436,370.26 = 172,973.28/x - Step 3: Cross multiply
316,214.49x = 436,370.26 × 172,973.28 - Step 4: Simplify right side
316,214.49x = 75,480,395,166.65 - Step 5: Solve for x
x = 75,480,395,166.65/316,214.49 - Step 6: Final answer
x = 238,699.99
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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.