Finding the Fourth Proportional to 318,223.97, 439,134.05 and 174,990.05
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Solution
The fourth proportional to 318,223.97, 439,134.05 and 174,990.05 is: 241,478.00
Step by Step Solution
- Step 1: Write the proportion equation
318,223.97 : 439,134.05 = 174,990.05 : x - Step 2: Convert to fraction form
318,223.97/439,134.05 = 174,990.05/x - Step 3: Cross multiply
318,223.97x = 439,134.05 × 174,990.05 - Step 4: Simplify right side
318,223.97x = 76,844,088,491.25 - Step 5: Solve for x
x = 76,844,088,491.25/318,223.97 - Step 6: Final answer
x = 241,478.00
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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.