Finding the Fourth Proportional to 257,178.19, 354,864.56 and 161,617.23
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Solution
The fourth proportional to 257,178.19, 354,864.56 and 161,617.23 is: 223,005.80
Step by Step Solution
- Step 1: Write the proportion equation
257,178.19 : 354,864.56 = 161,617.23 : x - Step 2: Convert to fraction form
257,178.19/354,864.56 = 161,617.23/x - Step 3: Cross multiply
257,178.19x = 354,864.56 × 161,617.23 - Step 4: Simplify right side
257,178.19x = 57,352,227,212.37 - Step 5: Solve for x
x = 57,352,227,212.37/257,178.19 - Step 6: Final answer
x = 223,005.80
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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.