Finding the Fourth Proportional to 287,409.58, 431,136.24 and 97,811.26
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Solution
The fourth proportional to 287,409.58, 431,136.24 and 97,811.26 is: 146,724.33
Step by Step Solution
- Step 1: Write the proportion equation
287,409.58 : 431,136.24 = 97,811.26 : x - Step 2: Convert to fraction form
287,409.58/431,136.24 = 97,811.26/x - Step 3: Cross multiply
287,409.58x = 431,136.24 × 97,811.26 - Step 4: Simplify right side
287,409.58x = 42,169,978,866.06 - Step 5: Solve for x
x = 42,169,978,866.06/287,409.58 - Step 6: Final answer
x = 146,724.33
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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.