Finding the Fourth Proportional to 358,537.80, 537,806.70 and 311,881.80
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Solution
The fourth proportional to 358,537.80, 537,806.70 and 311,881.80 is: 467,822.70
Step by Step Solution
- Step 1: Write the proportion equation
358,537.80 : 537,806.70 = 311,881.80 : x - Step 2: Convert to fraction form
358,537.80/537,806.70 = 311,881.80/x - Step 3: Cross multiply
358,537.80x = 537,806.70 × 311,881.80 - Step 4: Simplify right side
358,537.80x = 167,732,121,648.06 - Step 5: Solve for x
x = 167,732,121,648.06/358,537.80 - Step 6: Final answer
x = 467,822.70
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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.