Finding the Fourth Proportional to 318,084.76, 439,107.24 and 201,856.65
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Solution
The fourth proportional to 318,084.76, 439,107.24 and 201,856.65 is: 278,657.54
Step by Step Solution
- Step 1: Write the proportion equation
318,084.76 : 439,107.24 = 201,856.65 : x - Step 2: Convert to fraction form
318,084.76/439,107.24 = 201,856.65/x - Step 3: Cross multiply
318,084.76x = 439,107.24 × 201,856.65 - Step 4: Simplify right side
318,084.76x = 88,636,716,457.15 - Step 5: Solve for x
x = 88,636,716,457.15/318,084.76 - Step 6: Final answer
x = 278,657.54
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1.5x scale
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.