Finding the Fourth Proportional to 318,695.81, 439,791.68 and 175,456.92
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Solution
The fourth proportional to 318,695.81, 439,791.68 and 175,456.92 is: 242,125.85
Step by Step Solution
- Step 1: Write the proportion equation
318,695.81 : 439,791.68 = 175,456.92 : x - Step 2: Convert to fraction form
318,695.81/439,791.68 = 175,456.92/x - Step 3: Cross multiply
318,695.81x = 439,791.68 × 175,456.92 - Step 4: Simplify right side
318,695.81x = 77,164,492,737.14 - Step 5: Solve for x
x = 77,164,492,737.14/318,695.81 - Step 6: Final answer
x = 242,125.85
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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.