Finding the Fourth Proportional to 280,535.42, 387,141.35 and 159,684.49
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Solution
The fourth proportional to 280,535.42, 387,141.35 and 159,684.49 is: 220,366.00
Step by Step Solution
- Step 1: Write the proportion equation
280,535.42 : 387,141.35 = 159,684.49 : x - Step 2: Convert to fraction form
280,535.42/387,141.35 = 159,684.49/x - Step 3: Cross multiply
280,535.42x = 387,141.35 × 159,684.49 - Step 4: Simplify right side
280,535.42x = 61,820,468,710.01 - Step 5: Solve for x
x = 61,820,468,710.01/280,535.42 - Step 6: Final answer
x = 220,366.00
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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.