Finding the Fourth Proportional to 316,769.92, 437,142.56 and 173,535.12
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Solution
The fourth proportional to 316,769.92, 437,142.56 and 173,535.12 is: 239,478.50
Step by Step Solution
- Step 1: Write the proportion equation
316,769.92 : 437,142.56 = 173,535.12 : x - Step 2: Convert to fraction form
316,769.92/437,142.56 = 173,535.12/x - Step 3: Cross multiply
316,769.92x = 437,142.56 × 173,535.12 - Step 4: Simplify right side
316,769.92x = 75,859,586,606.71 - Step 5: Solve for x
x = 75,859,586,606.71/316,769.92 - Step 6: Final answer
x = 239,478.50
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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.