Finding the Fourth Proportional to 278,719.20, 384,792.09 and 183,502.70
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Solution
The fourth proportional to 278,719.20, 384,792.09 and 183,502.70 is: 253,338.79
Step by Step Solution
- Step 1: Write the proportion equation
278,719.20 : 384,792.09 = 183,502.70 : x - Step 2: Convert to fraction form
278,719.20/384,792.09 = 183,502.70/x - Step 3: Cross multiply
278,719.20x = 384,792.09 × 183,502.70 - Step 4: Simplify right side
278,719.20x = 70,610,385,529.68 - Step 5: Solve for x
x = 70,610,385,529.68/278,719.20 - Step 6: Final answer
x = 253,338.79
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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.