Finding the Fourth Proportional to 316,192.05, 436,348.44 and 172,948.95
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Solution
The fourth proportional to 316,192.05, 436,348.44 and 172,948.95 is: 238,671.42
Step by Step Solution
- Step 1: Write the proportion equation
316,192.05 : 436,348.44 = 172,948.95 : x - Step 2: Convert to fraction form
316,192.05/436,348.44 = 172,948.95/x - Step 3: Cross multiply
316,192.05x = 436,348.44 × 172,948.95 - Step 4: Simplify right side
316,192.05x = 75,466,004,532.14 - Step 5: Solve for x
x = 75,466,004,532.14/316,192.05 - Step 6: Final answer
x = 238,671.42
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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.