Finding the Fourth Proportional to 296,615.21, 409,326.95 and 160,646.05
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Solution
The fourth proportional to 296,615.21, 409,326.95 and 160,646.05 is: 221,690.43
Step by Step Solution
- Step 1: Write the proportion equation
296,615.21 : 409,326.95 = 160,646.05 : x - Step 2: Convert to fraction form
296,615.21/409,326.95 = 160,646.05/x - Step 3: Cross multiply
296,615.21x = 409,326.95 × 160,646.05 - Step 4: Simplify right side
296,615.21x = 65,756,754,826.18 - Step 5: Solve for x
x = 65,756,754,826.18/296,615.21 - Step 6: Final answer
x = 221,690.43
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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.