Finding the Fourth Proportional to 257,174.19, 385,786.80 and 107,461.28
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Solution
The fourth proportional to 257,174.19, 385,786.80 and 107,461.28 is: 161,202.59
Step by Step Solution
- Step 1: Write the proportion equation
257,174.19 : 385,786.80 = 107,461.28 : x - Step 2: Convert to fraction form
257,174.19/385,786.80 = 107,461.28/x - Step 3: Cross multiply
257,174.19x = 385,786.80 × 107,461.28 - Step 4: Simplify right side
257,174.19x = 41,457,144,299.57 - Step 5: Solve for x
x = 41,457,144,299.57/257,174.19 - Step 6: Final answer
x = 161,202.59
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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.