Finding the Fourth Proportional to 318,631.68, 439,721.28 and 175,394.88
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Solution
The fourth proportional to 318,631.68, 439,721.28 and 175,394.88 is: 242,050.20
Step by Step Solution
- Step 1: Write the proportion equation
318,631.68 : 439,721.28 = 175,394.88 : x - Step 2: Convert to fraction form
318,631.68/439,721.28 = 175,394.88/x - Step 3: Cross multiply
318,631.68x = 439,721.28 × 175,394.88 - Step 4: Simplify right side
318,631.68x = 77,124,861,139.05 - Step 5: Solve for x
x = 77,124,861,139.05/318,631.68 - Step 6: Final answer
x = 242,050.20
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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.