Finding the Fourth Proportional to 300,950.72, 415,355.04 and 173,670.08
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Solution
The fourth proportional to 300,950.72, 415,355.04 and 173,670.08 is: 239,689.55
Step by Step Solution
- Step 1: Write the proportion equation
300,950.72 : 415,355.04 = 173,670.08 : x - Step 2: Convert to fraction form
300,950.72/415,355.04 = 173,670.08/x - Step 3: Cross multiply
300,950.72x = 415,355.04 × 173,670.08 - Step 4: Simplify right side
300,950.72x = 72,134,743,025.20 - Step 5: Solve for x
x = 72,134,743,025.20/300,950.72 - Step 6: Final answer
x = 239,689.55
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1.5x scale
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.