Finding the Fourth Proportional to 368,721.63, 553,093.25 and 144,072.99
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Solution
The fourth proportional to 368,721.63, 553,093.25 and 144,072.99 is: 216,113.70
Step by Step Solution
- Step 1: Write the proportion equation
368,721.63 : 553,093.25 = 144,072.99 : x - Step 2: Convert to fraction form
368,721.63/553,093.25 = 144,072.99/x - Step 3: Cross multiply
368,721.63x = 553,093.25 × 144,072.99 - Step 4: Simplify right side
368,721.63x = 79,685,797,555.95 - Step 5: Solve for x
x = 79,685,797,555.95/368,721.63 - Step 6: Final answer
x = 216,113.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.