Finding the Fourth Proportional to 318,939.99, 440,106.90 and 182,985.14
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Solution
The fourth proportional to 318,939.99, 440,106.90 and 182,985.14 is: 252,502.11
Step by Step Solution
- Step 1: Write the proportion equation
318,939.99 : 440,106.90 = 182,985.14 : x - Step 2: Convert to fraction form
318,939.99/440,106.90 = 182,985.14/x - Step 3: Cross multiply
318,939.99x = 440,106.90 × 182,985.14 - Step 4: Simplify right side
318,939.99x = 80,533,020,510.93 - Step 5: Solve for x
x = 80,533,020,510.93/318,939.99 - Step 6: Final answer
x = 252,502.11
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1.5x scale
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.