Finding the Fourth Proportional to 320,384.76, 442,113.12 and 177,136.44
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Solution
The fourth proportional to 320,384.76, 442,113.12 and 177,136.44 is: 244,438.42
Step by Step Solution
- Step 1: Write the proportion equation
320,384.76 : 442,113.12 = 177,136.44 : x - Step 2: Convert to fraction form
320,384.76/442,113.12 = 177,136.44/x - Step 3: Cross multiply
320,384.76x = 442,113.12 × 177,136.44 - Step 4: Simplify right side
320,384.76x = 78,314,344,154.09 - Step 5: Solve for x
x = 78,314,344,154.09/320,384.76 - Step 6: Final answer
x = 244,438.42
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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.