Finding the Fourth Proportional to 398,249.52, 549,582.15 and 216,960.99
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Solution
The fourth proportional to 398,249.52, 549,582.15 and 216,960.99 is: 299,404.97
Step by Step Solution
- Step 1: Write the proportion equation
398,249.52 : 549,582.15 = 216,960.99 : x - Step 2: Convert to fraction form
398,249.52/549,582.15 = 216,960.99/x - Step 3: Cross multiply
398,249.52x = 549,582.15 × 216,960.99 - Step 4: Simplify right side
398,249.52x = 119,237,887,350.33 - Step 5: Solve for x
x = 119,237,887,350.33/398,249.52 - Step 6: Final answer
x = 299,404.97
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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.