Finding the Fourth Proportional to 398,223.36, 549,565.44 and 226,137.84
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Solution
The fourth proportional to 398,223.36, 549,565.44 and 226,137.84 is: 312,079.99
Step by Step Solution
- Step 1: Write the proportion equation
398,223.36 : 549,565.44 = 226,137.84 : x - Step 2: Convert to fraction form
398,223.36/549,565.44 = 226,137.84/x - Step 3: Cross multiply
398,223.36x = 549,565.44 × 226,137.84 - Step 4: Simplify right side
398,223.36x = 124,277,541,540.25 - Step 5: Solve for x
x = 124,277,541,540.25/398,223.36 - Step 6: Final answer
x = 312,079.99
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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.