Finding the Fourth Proportional to 146,789.40, 202,268.70 and 121,387.80
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Solution
The fourth proportional to 146,789.40, 202,268.70 and 121,387.80 is: 167,266.52
Step by Step Solution
- Step 1: Write the proportion equation
146,789.40 : 202,268.70 = 121,387.80 : x - Step 2: Convert to fraction form
146,789.40/202,268.70 = 121,387.80/x - Step 3: Cross multiply
146,789.40x = 202,268.70 × 121,387.80 - Step 4: Simplify right side
146,789.40x = 24,552,952,501.86 - Step 5: Solve for x
x = 24,552,952,501.86/146,789.40 - Step 6: Final answer
x = 167,266.52
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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.