Finding the Fourth Proportional to 389,425.20, 537,395.16 and 217,348.08
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Solution
The fourth proportional to 389,425.20, 537,395.16 and 217,348.08 is: 299,933.87
Step by Step Solution
- Step 1: Write the proportion equation
389,425.20 : 537,395.16 = 217,348.08 : x - Step 2: Convert to fraction form
389,425.20/537,395.16 = 217,348.08/x - Step 3: Cross multiply
389,425.20x = 537,395.16 × 217,348.08 - Step 4: Simplify right side
389,425.20x = 116,801,806,227.29 - Step 5: Solve for x
x = 116,801,806,227.29/389,425.20 - Step 6: Final answer
x = 299,933.87
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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.