Finding the Fourth Proportional to 316,912.99, 437,343.38 and 173,669.98
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Solution
The fourth proportional to 316,912.99, 437,343.38 and 173,669.98 is: 239,666.47
Step by Step Solution
- Step 1: Write the proportion equation
316,912.99 : 437,343.38 = 173,669.98 : x - Step 2: Convert to fraction form
316,912.99/437,343.38 = 173,669.98/x - Step 3: Cross multiply
316,912.99x = 437,343.38 × 173,669.98 - Step 4: Simplify right side
316,912.99x = 75,953,416,057.73 - Step 5: Solve for x
x = 75,953,416,057.73/316,912.99 - Step 6: Final answer
x = 239,666.47
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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.