Finding the Fourth Proportional to 368,940.66, 509,251.02 and 216,014.70
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Solution
The fourth proportional to 368,940.66, 509,251.02 and 216,014.70 is: 298,166.39
Step by Step Solution
- Step 1: Write the proportion equation
368,940.66 : 509,251.02 = 216,014.70 : x - Step 2: Convert to fraction form
368,940.66/509,251.02 = 216,014.70/x - Step 3: Cross multiply
368,940.66x = 509,251.02 × 216,014.70 - Step 4: Simplify right side
368,940.66x = 110,005,706,309.99 - Step 5: Solve for x
x = 110,005,706,309.99/368,940.66 - Step 6: Final answer
x = 298,166.39
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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.