Finding the Fourth Proportional to 205,136.87, 307,811.88 and 155,202.17
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Solution
The fourth proportional to 205,136.87, 307,811.88 and 155,202.17 is: 232,883.89
Step by Step Solution
- Step 1: Write the proportion equation
205,136.87 : 307,811.88 = 155,202.17 : x - Step 2: Convert to fraction form
205,136.87/307,811.88 = 155,202.17/x - Step 3: Cross multiply
205,136.87x = 307,811.88 × 155,202.17 - Step 4: Simplify right side
205,136.87x = 47,773,070,188.72 - Step 5: Solve for x
x = 47,773,070,188.72/205,136.87 - Step 6: Final answer
x = 232,883.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.