Finding the Fourth Proportional to 398,474.36, 549,894.82 and 226,392.62
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Solution
The fourth proportional to 398,474.36, 549,894.82 and 226,392.62 is: 312,421.93
Step by Step Solution
- Step 1: Write the proportion equation
398,474.36 : 549,894.82 = 226,392.62 : x - Step 2: Convert to fraction form
398,474.36/549,894.82 = 226,392.62/x - Step 3: Cross multiply
398,474.36x = 549,894.82 × 226,392.62 - Step 4: Simplify right side
398,474.36x = 124,492,129,024.23 - Step 5: Solve for x
x = 124,492,129,024.23/398,474.36 - Step 6: Final answer
x = 312,421.93
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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.