Finding the Fourth Proportional to 353,229.60, 528,634.80 and 213,088.80
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Solution
The fourth proportional to 353,229.60, 528,634.80 and 213,088.80 is: 318,903.50
Step by Step Solution
- Step 1: Write the proportion equation
353,229.60 : 528,634.80 = 213,088.80 : x - Step 2: Convert to fraction form
353,229.60/528,634.80 = 213,088.80/x - Step 3: Cross multiply
353,229.60x = 528,634.80 × 213,088.80 - Step 4: Simplify right side
353,229.60x = 112,646,155,170.24 - Step 5: Solve for x
x = 112,646,155,170.24/353,229.60 - Step 6: Final answer
x = 318,903.50
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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.