Finding the Fourth Proportional to 257,158.76, 385,629.93 and 97,207.79
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Solution
The fourth proportional to 257,158.76, 385,629.93 and 97,207.79 is: 145,770.78
Step by Step Solution
- Step 1: Write the proportion equation
257,158.76 : 385,629.93 = 97,207.79 : x - Step 2: Convert to fraction form
257,158.76/385,629.93 = 97,207.79/x - Step 3: Cross multiply
257,158.76x = 385,629.93 × 97,207.79 - Step 4: Simplify right side
257,158.76x = 37,486,231,325.01 - Step 5: Solve for x
x = 37,486,231,325.01/257,158.76 - Step 6: Final answer
x = 145,770.78
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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.