Finding the Fourth Proportional to 257,854.75, 355,845.69 and 144,685.87
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Solution
The fourth proportional to 257,854.75, 355,845.69 and 144,685.87 is: 199,669.94
Step by Step Solution
- Step 1: Write the proportion equation
257,854.75 : 355,845.69 = 144,685.87 : x - Step 2: Convert to fraction form
257,854.75/355,845.69 = 144,685.87/x - Step 3: Cross multiply
257,854.75x = 355,845.69 × 144,685.87 - Step 4: Simplify right side
257,854.75x = 51,485,843,243.40 - Step 5: Solve for x
x = 51,485,843,243.40/257,854.75 - Step 6: Final answer
x = 199,669.94
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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.