Finding the Fourth Proportional to 320,385.26, 442,113.98 and 177,136.76
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Solution
The fourth proportional to 320,385.26, 442,113.98 and 177,136.76 is: 244,438.95
Step by Step Solution
- Step 1: Write the proportion equation
320,385.26 : 442,113.98 = 177,136.76 : x - Step 2: Convert to fraction form
320,385.26/442,113.98 = 177,136.76/x - Step 3: Cross multiply
320,385.26x = 442,113.98 × 177,136.76 - Step 4: Simplify right side
320,385.26x = 78,314,637,967.90 - Step 5: Solve for x
x = 78,314,637,967.90/320,385.26 - Step 6: Final answer
x = 244,438.95
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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.