Finding the Fourth Proportional to 316,670.77, 437,005.66 and 173,431.15
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Solution
The fourth proportional to 316,670.77, 437,005.66 and 173,431.15 is: 239,334.99
Step by Step Solution
- Step 1: Write the proportion equation
316,670.77 : 437,005.66 = 173,431.15 : x - Step 2: Convert to fraction form
316,670.77/437,005.66 = 173,431.15/x - Step 3: Cross multiply
316,670.77x = 437,005.66 × 173,431.15 - Step 4: Simplify right side
316,670.77x = 75,790,393,710.70 - Step 5: Solve for x
x = 75,790,393,710.70/316,670.77 - Step 6: Final answer
x = 239,334.99
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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.