Finding the Fourth Proportional to 305,004.18, 420,905.77 and 169,058.55
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Solution
The fourth proportional to 305,004.18, 420,905.77 and 169,058.55 is: 233,300.80
Step by Step Solution
- Step 1: Write the proportion equation
305,004.18 : 420,905.77 = 169,058.55 : x - Step 2: Convert to fraction form
305,004.18/420,905.77 = 169,058.55/x - Step 3: Cross multiply
305,004.18x = 420,905.77 × 169,058.55 - Step 4: Simplify right side
305,004.18x = 71,157,720,318.58 - Step 5: Solve for x
x = 71,157,720,318.58/305,004.18 - Step 6: Final answer
x = 233,300.80
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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.