Finding the Fourth Proportional to 318,209.73, 477,446.77 and 128,803.99
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Solution
The fourth proportional to 318,209.73, 477,446.77 and 128,803.99 is: 193,259.49
Step by Step Solution
- Step 1: Write the proportion equation
318,209.73 : 477,446.77 = 128,803.99 : x - Step 2: Convert to fraction form
318,209.73/477,446.77 = 128,803.99/x - Step 3: Cross multiply
318,209.73x = 477,446.77 × 128,803.99 - Step 4: Simplify right side
318,209.73x = 61,497,048,988.61 - Step 5: Solve for x
x = 61,497,048,988.61/318,209.73 - Step 6: Final answer
x = 193,259.49
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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.