Finding the Fourth Proportional to 633.23, 873.55 and 545.75
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Solution
The fourth proportional to 633.23, 873.55 and 545.75 is: 752.87
Step by Step Solution
- Step 1: Write the proportion equation
633.23 : 873.55 = 545.75 : x - Step 2: Convert to fraction form
633.23/873.55 = 545.75/x - Step 3: Cross multiply
633.23x = 873.55 × 545.75 - Step 4: Simplify right side
633.23x = 476,739.91 - Step 5: Solve for x
x = 476,739.91/633.23 - Step 6: Final answer
x = 752.87
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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.