Finding the Fourth Proportional to 318,640.42, 439,723.69 and 175,399.75
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Solution
The fourth proportional to 318,640.42, 439,723.69 and 175,399.75 is: 242,051.61
Step by Step Solution
- Step 1: Write the proportion equation
318,640.42 : 439,723.69 = 175,399.75 : x - Step 2: Convert to fraction form
318,640.42/439,723.69 = 175,399.75/x - Step 3: Cross multiply
318,640.42x = 439,723.69 × 175,399.75 - Step 4: Simplify right side
318,640.42x = 77,127,425,295.08 - Step 5: Solve for x
x = 77,127,425,295.08/318,640.42 - Step 6: Final answer
x = 242,051.61
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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.