Finding the Fourth Proportional to 411,431.70, 617,147.55 and 201,479.70
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Solution
The fourth proportional to 411,431.70, 617,147.55 and 201,479.70 is: 302,219.55
Step by Step Solution
- Step 1: Write the proportion equation
411,431.70 : 617,147.55 = 201,479.70 : x - Step 2: Convert to fraction form
411,431.70/617,147.55 = 201,479.70/x - Step 3: Cross multiply
411,431.70x = 617,147.55 × 201,479.70 - Step 4: Simplify right side
411,431.70x = 124,342,703,229.74 - Step 5: Solve for x
x = 124,342,703,229.74/411,431.70 - Step 6: Final answer
x = 302,219.55
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1.5x scale
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.