Finding the Fourth Proportional to 280,674.99, 387,331.63 and 151,613.46
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Solution
The fourth proportional to 280,674.99, 387,331.63 and 151,613.46 is: 209,226.65
Step by Step Solution
- Step 1: Write the proportion equation
280,674.99 : 387,331.63 = 151,613.46 : x - Step 2: Convert to fraction form
280,674.99/387,331.63 = 151,613.46/x - Step 3: Cross multiply
280,674.99x = 387,331.63 × 151,613.46 - Step 4: Simplify right side
280,674.99x = 58,724,688,591.74 - Step 5: Solve for x
x = 58,724,688,591.74/280,674.99 - Step 6: Final answer
x = 209,226.65
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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.