Finding the Fourth Proportional to 284,430.62, 426,670.43 and 74,068.94
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Solution
The fourth proportional to 284,430.62, 426,670.43 and 74,068.94 is: 111,109.79
Step by Step Solution
- Step 1: Write the proportion equation
284,430.62 : 426,670.43 = 74,068.94 : x - Step 2: Convert to fraction form
284,430.62/426,670.43 = 74,068.94/x - Step 3: Cross multiply
284,430.62x = 426,670.43 × 74,068.94 - Step 4: Simplify right side
284,430.62x = 31,603,026,479.44 - Step 5: Solve for x
x = 31,603,026,479.44/284,430.62 - Step 6: Final answer
x = 111,109.79
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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.