Finding the Fourth Proportional to 411,808.84, 617,838.70 and 201,416.20
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Solution
The fourth proportional to 411,808.84, 617,838.70 and 201,416.20 is: 302,185.65
Step by Step Solution
- Step 1: Write the proportion equation
411,808.84 : 617,838.70 = 201,416.20 : x - Step 2: Convert to fraction form
411,808.84/617,838.70 = 201,416.20/x - Step 3: Cross multiply
411,808.84x = 617,838.70 × 201,416.20 - Step 4: Simplify right side
411,808.84x = 124,442,723,166.94 - Step 5: Solve for x
x = 124,442,723,166.94/411,808.84 - Step 6: Final answer
x = 302,185.65
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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.