Finding the Fourth Proportional to 316,339.47, 436,553.28 and 173,112.84
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Solution
The fourth proportional to 316,339.47, 436,553.28 and 173,112.84 is: 238,898.35
Step by Step Solution
- Step 1: Write the proportion equation
316,339.47 : 436,553.28 = 173,112.84 : x - Step 2: Convert to fraction form
316,339.47/436,553.28 = 173,112.84/x - Step 3: Cross multiply
316,339.47x = 436,553.28 × 173,112.84 - Step 4: Simplify right side
316,339.47x = 75,572,978,112.12 - Step 5: Solve for x
x = 75,572,978,112.12/316,339.47 - Step 6: Final answer
x = 238,898.35
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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.