Finding the Fourth Proportional to 395,905.32, 546,349.05 and 214,623.07
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Solution
The fourth proportional to 395,905.32, 546,349.05 and 214,623.07 is: 296,179.68
Step by Step Solution
- Step 1: Write the proportion equation
395,905.32 : 546,349.05 = 214,623.07 : x - Step 2: Convert to fraction form
395,905.32/546,349.05 = 214,623.07/x - Step 3: Cross multiply
395,905.32x = 546,349.05 × 214,623.07 - Step 4: Simplify right side
395,905.32x = 117,259,109,036.71 - Step 5: Solve for x
x = 117,259,109,036.71/395,905.32 - Step 6: Final answer
x = 296,179.68
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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.