Finding the Fourth Proportional to 312,037.80, 468,056.70 and 272,671.80
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Solution
The fourth proportional to 312,037.80, 468,056.70 and 272,671.80 is: 409,007.70
Step by Step Solution
- Step 1: Write the proportion equation
312,037.80 : 468,056.70 = 272,671.80 : x - Step 2: Convert to fraction form
312,037.80/468,056.70 = 272,671.80/x - Step 3: Cross multiply
312,037.80x = 468,056.70 × 272,671.80 - Step 4: Simplify right side
312,037.80x = 127,625,862,891.06 - Step 5: Solve for x
x = 127,625,862,891.06/312,037.80 - Step 6: Final answer
x = 409,007.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.