Finding the Fourth Proportional to 513,345.36, 769,959.20 and 134,302.68
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Solution
The fourth proportional to 513,345.36, 769,959.20 and 134,302.68 is: 201,438.62
Step by Step Solution
- Step 1: Write the proportion equation
513,345.36 : 769,959.20 = 134,302.68 : x - Step 2: Convert to fraction form
513,345.36/769,959.20 = 134,302.68/x - Step 3: Cross multiply
513,345.36x = 769,959.20 × 134,302.68 - Step 4: Simplify right side
513,345.36x = 103,407,583,379.14 - Step 5: Solve for x
x = 103,407,583,379.14/513,345.36 - Step 6: Final answer
x = 201,438.62
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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.