Finding the Fourth Proportional to 424,615.76, 636,398.76 and 214,313.84
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Solution
The fourth proportional to 424,615.76, 636,398.76 and 214,313.84 is: 321,205.84
Step by Step Solution
- Step 1: Write the proportion equation
424,615.76 : 636,398.76 = 214,313.84 : x - Step 2: Convert to fraction form
424,615.76/636,398.76 = 214,313.84/x - Step 3: Cross multiply
424,615.76x = 636,398.76 × 214,313.84 - Step 4: Simplify right side
424,615.76x = 136,389,062,026.84 - Step 5: Solve for x
x = 136,389,062,026.84/424,615.76 - Step 6: Final answer
x = 321,205.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.