Finding the Fourth Proportional to 274,549.05, 411,660.81 and 84,953.28
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Solution
The fourth proportional to 274,549.05, 411,660.81 and 84,953.28 is: 127,379.56
Step by Step Solution
- Step 1: Write the proportion equation
274,549.05 : 411,660.81 = 84,953.28 : x - Step 2: Convert to fraction form
274,549.05/411,660.81 = 84,953.28/x - Step 3: Cross multiply
274,549.05x = 411,660.81 × 84,953.28 - Step 4: Simplify right side
274,549.05x = 34,971,936,056.96 - Step 5: Solve for x
x = 34,971,936,056.96/274,549.05 - Step 6: Final answer
x = 127,379.56
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1.5x scale
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.