Finding the Fourth Proportional to 286,485.10, 392,293.08 and 275,191.90
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Solution
The fourth proportional to 286,485.10, 392,293.08 and 275,191.90 is: 376,828.95
Step by Step Solution
- Step 1: Write the proportion equation
286,485.10 : 392,293.08 = 275,191.90 : x - Step 2: Convert to fraction form
286,485.10/392,293.08 = 275,191.90/x - Step 3: Cross multiply
286,485.10x = 392,293.08 × 275,191.90 - Step 4: Simplify right side
286,485.10x = 107,955,878,042.05 - Step 5: Solve for x
x = 107,955,878,042.05/286,485.10 - Step 6: Final answer
x = 376,828.95
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.