Finding the Fourth Proportional to 257,058.45, 354,654.81 and 149,605.70
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Solution
The fourth proportional to 257,058.45, 354,654.81 and 149,605.70 is: 206,405.89
Step by Step Solution
- Step 1: Write the proportion equation
257,058.45 : 354,654.81 = 149,605.70 : x - Step 2: Convert to fraction form
257,058.45/354,654.81 = 149,605.70/x - Step 3: Cross multiply
257,058.45x = 354,654.81 × 149,605.70 - Step 4: Simplify right side
257,058.45x = 53,058,379,335.14 - Step 5: Solve for x
x = 53,058,379,335.14/257,058.45 - Step 6: Final answer
x = 206,405.89
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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.