Finding the Fourth Proportional to 300,129.62, 450,195.19 and 122,636.63
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Solution
The fourth proportional to 300,129.62, 450,195.19 and 122,636.63 is: 183,955.26
Step by Step Solution
- Step 1: Write the proportion equation
300,129.62 : 450,195.19 = 122,636.63 : x - Step 2: Convert to fraction form
300,129.62/450,195.19 = 122,636.63/x - Step 3: Cross multiply
300,129.62x = 450,195.19 × 122,636.63 - Step 4: Simplify right side
300,129.62x = 55,210,421,762.71 - Step 5: Solve for x
x = 55,210,421,762.71/300,129.62 - Step 6: Final answer
x = 183,955.26
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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.