Finding the Fourth Proportional to 371,834.68, 513,135.12 and 202,068.80
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Solution
The fourth proportional to 371,834.68, 513,135.12 and 202,068.80 is: 278,856.72
Step by Step Solution
- Step 1: Write the proportion equation
371,834.68 : 513,135.12 = 202,068.80 : x - Step 2: Convert to fraction form
371,834.68/513,135.12 = 202,068.80/x - Step 3: Cross multiply
371,834.68x = 513,135.12 × 202,068.80 - Step 4: Simplify right side
371,834.68x = 103,688,597,936.26 - Step 5: Solve for x
x = 103,688,597,936.26/371,834.68 - Step 6: Final answer
x = 278,856.72
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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.