Finding the Fourth Proportional to 378,976.11, 523,074.99 and 249,937.95
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Solution
The fourth proportional to 378,976.11, 523,074.99 and 249,937.95 is: 344,972.38
Step by Step Solution
- Step 1: Write the proportion equation
378,976.11 : 523,074.99 = 249,937.95 : x - Step 2: Convert to fraction form
378,976.11/523,074.99 = 249,937.95/x - Step 3: Cross multiply
378,976.11x = 523,074.99 × 249,937.95 - Step 4: Simplify right side
378,976.11x = 130,736,290,696.87 - Step 5: Solve for x
x = 130,736,290,696.87/378,976.11 - Step 6: Final answer
x = 344,972.38
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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.