Finding the Fourth Proportional to 318,843.62, 440,024.09 and 175,603.62
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Solution
The fourth proportional to 318,843.62, 440,024.09 and 175,603.62 is: 242,343.95
Step by Step Solution
- Step 1: Write the proportion equation
318,843.62 : 440,024.09 = 175,603.62 : x - Step 2: Convert to fraction form
318,843.62/440,024.09 = 175,603.62/x - Step 3: Cross multiply
318,843.62x = 440,024.09 × 175,603.62 - Step 4: Simplify right side
318,843.62x = 77,269,823,091.21 - Step 5: Solve for x
x = 77,269,823,091.21/318,843.62 - Step 6: Final answer
x = 242,343.95
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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.