Finding the Fourth Proportional to 389,826.18, 537,954.33 and 217,746.54
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Solution
The fourth proportional to 389,826.18, 537,954.33 and 217,746.54 is: 300,486.99
Step by Step Solution
- Step 1: Write the proportion equation
389,826.18 : 537,954.33 = 217,746.54 : x - Step 2: Convert to fraction form
389,826.18/537,954.33 = 217,746.54/x - Step 3: Cross multiply
389,826.18x = 537,954.33 × 217,746.54 - Step 4: Simplify right side
389,826.18x = 117,137,694,035.52 - Step 5: Solve for x
x = 117,137,694,035.52/389,826.18 - Step 6: Final answer
x = 300,486.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.