Finding the Fourth Proportional to 346,830.12, 520,286.82 and 122,144.08
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Solution
The fourth proportional to 346,830.12, 520,286.82 and 122,144.08 is: 183,230.78
Step by Step Solution
- Step 1: Write the proportion equation
346,830.12 : 520,286.82 = 122,144.08 : x - Step 2: Convert to fraction form
346,830.12/520,286.82 = 122,144.08/x - Step 3: Cross multiply
346,830.12x = 520,286.82 × 122,144.08 - Step 4: Simplify right side
346,830.12x = 63,549,954,965.03 - Step 5: Solve for x
x = 63,549,954,965.03/346,830.12 - Step 6: Final answer
x = 183,230.78
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.