Finding the Fourth Proportional to 402,623.12, 555,630.60 and 218,874.04
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Solution
The fourth proportional to 402,623.12, 555,630.60 and 218,874.04 is: 302,051.99
Step by Step Solution
- Step 1: Write the proportion equation
402,623.12 : 555,630.60 = 218,874.04 : x - Step 2: Convert to fraction form
402,623.12/555,630.60 = 218,874.04/x - Step 3: Cross multiply
402,623.12x = 555,630.60 × 218,874.04 - Step 4: Simplify right side
402,623.12x = 121,613,114,169.62 - Step 5: Solve for x
x = 121,613,114,169.62/402,623.12 - Step 6: Final answer
x = 302,051.99
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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.