Finding the Fourth Proportional to 396,864.23, 547,454.50 and 251,403.62
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Solution
The fourth proportional to 396,864.23, 547,454.50 and 251,403.62 is: 346,798.81
Step by Step Solution
- Step 1: Write the proportion equation
396,864.23 : 547,454.50 = 251,403.62 : x - Step 2: Convert to fraction form
396,864.23/547,454.50 = 251,403.62/x - Step 3: Cross multiply
396,864.23x = 547,454.50 × 251,403.62 - Step 4: Simplify right side
396,864.23x = 137,632,039,719.51 - Step 5: Solve for x
x = 137,632,039,719.51/396,864.23 - Step 6: Final answer
x = 346,798.81
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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.