Finding the Fourth Proportional to 379,933.12, 524,256.35 and 216,610.70
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Solution
The fourth proportional to 379,933.12, 524,256.35 and 216,610.70 is: 298,893.48
Step by Step Solution
- Step 1: Write the proportion equation
379,933.12 : 524,256.35 = 216,610.70 : x - Step 2: Convert to fraction form
379,933.12/524,256.35 = 216,610.70/x - Step 3: Cross multiply
379,933.12x = 524,256.35 × 216,610.70 - Step 4: Simplify right side
379,933.12x = 113,559,532,873.19 - Step 5: Solve for x
x = 113,559,532,873.19/379,933.12 - Step 6: Final answer
x = 298,893.48
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.